How to make a T harness so you do not have to cut your radio Plug when adding amps 

I’ve watched it three times and still need more on this.

You guys are indispensable for the car audio community. Thanks for all you do.

Thank you SOOOO much for finally making videos to these tech questions. I know you answer a lot of the questions in your live and other vehicle videos, but trying to find those answers later are just about impossible.

Just completed my first radio install today 😁 found out pretty quickly, which was my constant and accessory wire through testing with a multimeter(checking for voltage to pass through) and switching the ignition on and off.

Great video I learned a lot, I hope you will make a video connecting to the new amplifier and wiring the speakers and the crossovers for the tweeters.

I swear this video just saved me so much money .. I love all of yalls videos. very awesome and cool installs ...

This is a brilliant product! It is not cheap, but it will pay for itself in the time saved during install! Outstanding video, 5 Star!

this is the best "circle of life" video ever made. thank you!!!!

Thanks for making this video. First, saved me from buying the two metra harnesses to try to make my own T harness by showing me that all the wires would not be passed through! thanks for the two suggestions for making your own T-harness. This is a way better and clean solution to add an amplifier to my stock stereo without cutting the factory harness, especially if I may not keep my car that long and want to remove it. Plus it definitely will make the installation time shorter without having to have the dash all open for that long.

You guys are great. Your very informative!

Thanks for making a inspiring video with the Lc7i for my 2018 corolla le T hardness. Just need a few other things and it will complete 🙏 one day. Thanks 😊

Great info, just what I needed.🖐🤩

Great video guys thank you 👍 ya'll the best

Great video Just what I needed to know Thanks

i remember this video from years ago.... now i need it for my 2016 non-sony sho

I cut my speaker output harness at the jbl amp in my toyota I used speedwire in and out but I used male and female connectors on all the wires so I can put it all back to stock if I pull the system out☺

This finally makes sense! Thank God!

Excellent explanation. Thanks

Super helpful. Thank you

so very help full thank you thank you thank you

Love your videos! do they make a t harness for the newer silverados. I havent been able to find one. would you guys be willing to make one?

very helpful. Thanks alot.

Nice plug and play guys

Awesome VId! 2013 F150 4.2 sync, what a pain

This is really good information and thank you alot. I always though i needed a rca converter but using the high input on my amp works, the only problem is that if i put the gain more than 2, i start hearing distortion, for example without playing music you will hear a shhhhhhhhhhhhhhhhh sound. Luckily i dont have engine sound. @dean if you can help me with this i will appreciate it, thank you alot and i enjoy seeing all your video!

Just wanted to say you guys have taught me so much. I have a 2021 ram 1500 long horn without amp.If i am planning on using a metra t harness to grab hi/low to my dm-810 from radio to dsp through speed wire but am going to run new wire to speakers do i just not hook up the speaker connections on the t-harness? Should i just individually heat shrink those wires to insulate them? I did buy a set of audiocontrol Ac-lgd-20 to install between the speed wire and dsp to make sure the headunit works

By adding this harness to my 2016 f150 non sony, can I also use forscan to turn off bass canceling or is it best to use a LC7i?

i have the CH1 T harness and the Maestro RR. Where can i nab a remote turn on for 2 external amps at?

Great video, I really appreciate it. I was wondering is there a harness for my factory head unit 2020 Toyota Camry non JBL. I would like to add an aftermarket amplifier.

What is the link for the ax-DSP review cant find in show notes like mentioned in video

I just found you guy on youtube and enjoy all your vids. Im in Florida and wanting to purchase a harness for my 2020 tacoma do you guys ship?

If I use low level input, the speaker wires coming out of the radio harness can that just be capped off? Then connecting the output from the DSP to the other end of the harness going into the factory plug?

What you recommend for a 2015 ford fusion with the small 4" stock stereo, I'd been looking on the internet but nothing found, I want to install a 4 chann amp

can i use my factory amplifier wiring harness to hook up aftermarket amp ? teh speaker is a kicker pt250 100 watt amp sub and box all in one

Awesome video Dean, thanks. I have 2 questions if you don't mind, 1) do you know of a part number for a 2017 CR-V EX T-harness? 2) You mentioned the speed wire is 18 awg, is 18 awg sufficient enough to use for components speakers, I suppose the better question is will the factory wiring to the doors be sufficient for use on aftermarket door components?

Can i use the speed wire to tie into my radio interface so i can add a amp for my door speakers

Great episode, very informative. One thing I am curious about though, what do you guys use as a remote turn on when building these T harnesses?

Ive been researching but cannot find a t harness for a 2017 Chevy Equinox. It isn’t a premium audio system but does have the factory touch screen. Do they make a harness for this vehicle? Please help!

What T harness would you recommend for a 2011 Chevy Avalanche LTZ

Hi Dean and Fernando, I have a 2015 Nissan Rogue. It’s the non Bose system. I’d like to add a 4 channel amp. My question is I’m researching a t harness. I think I need a carav harness I’m just checking if you know what part number I need. I believe the part number is 12-036 I just wondered if you know for sure. Thx.

16:10 is the answer I've been searching for. Just to KNOW where the hi level speaker output is on the Metra pass through rather than ripping up the dash and performing live tests looking for signal.

I have a 2014 Ford explorer 8" Touchscreen Non Sony, Non amplified, so i make the T-Harness and run the speed wire to either the LOC or the DSP i get that, what about if im running my own wires from the amp to the speakers since I'll be making custom door pods for the speakers that I'll be using, what happens to the side of the T-Harness that im supposed to hook up the other run of speed wire?

For a 2021 Chevy Silverado 1500 stock unit not Bose just the cheapest one. I have 2 aftermarket amps what kit do I need for my truck? I have a LC7 and matrix also

I have a 2016 Ram 1500 quad cab with the 5" screen Uconnect factory HU. Its the non amplified 6 speaker base system. 4) coaxial 6x9s one in each of 4 doors.. and 2) 3.5" in dash. I want to go out of the factory harness from HU using a T-Harness to go to my LC7 I with all 6ch and then from LC7i out with 4 ch full range to my 4 ch amp then out of the 4ch amp back to T-Harness to hook back into factory run doors and dash speaker wires. Also out from LC7i with the 2ch RCA sub signals to my 2ch Bass amp to power 2 10" subs in box under rear bench seat. so I have the LC7i but I need the correct Plug & Play T-Harness for this exact type of install. Can you please help me with exact Brand name/Model Number/where to purchase it? I have watched every one of your You Tube videos! Keep it up please! Thank you very much.

any links to these having hard time finding one for ford edge 2013 8 Inc screen non amped

Do they make a harness for a 2006 mercury milan? I cant find one

I have a 2007 Ford F-150 I would like to upgrade my am-fm to a stock radio with a CD player! What do I need for this upgrade as far as wiring it up ? Thanks

Just trying to figure out how to add an amp to a 11 f150 factory radio with sync no nav I believe I’m going to have to make a t harness with a hug to low converter. Just wanted to ask before I went into it

Did Metra change something since the video was made? I can found one that should work with my 2023 Blazer, but you have to be a dealer to buy it and when I search for it it shows a kit including the DSP. I have looked, but can't find a part number anywhere for just the harness. The part number I have is AXDSPH-GM30

What kind of harness do I need to get for a Toyota Rav4 2020?. Late to the party

I can't explain why but I am so confused.

What about vehicles with factory amplifiers? We are grabbing signal from headunit and sending it into dsp/amp and then sending amplified signal back into factory harness which leads to factory amplifier. Am i missing something? Or shouldnt we connect the amplified signal wires near the factory amplifier location that goes straight to the speakers?

I wired everything up and I’m only getting sound from my rear left speaker and no other speakers. I’m getting resistance from my harness connected to the factory and going to my amp, but at the amp I’m only getting resistance on the wires for the speaker that’s working but not the other ones. Which is odd. And on the harness going to the radio with speed wire to the lc7i I have no resistance on any wires… any help is appreciated thank you

Dean, can you do a show on mazda and their bose system

Hell. I have a 2022 Chevrolet Silverado ltz with bose speakers indicated on the doors. Does that mean it has a bose amplifier? Thanks.

What if you have a factory amplifier? Do you need to bypass that?

Exactly the video I've been looking for . Question though! What would I do with the "output" connecting wires if I were running new wires to the speakers. Just cap then off ?

Where can you find the CARAV 12-240 these days? I am having a lot of trouble finding an online source to buy this from. If this is no longer available, are there any new choices beyond the Axxess/ Metra unit to consider?

hey, i'm wondering if you guys have experienced installing aftermarket radio with honda stream premium audio factory amplifier. i've been looking for info like where the factory amp is located and which wire from the stock harness powers the amp. so far my android unit plays normally but no sound is coming out. if i wired a speaker directly to the player, there is audio. appreciate your assistance. thanks

What is a PN# for a 2015&up Chrysler 200?

What about the T-Harness for plugging into factory amp

I have a 22 Ford maverick and can't seem to find anyone that makes a breakout harness for my truck. What can I do to make one or do you know of anyone that offers one. Hope you can help

Can you give me the part number for a metra t harness for a 2019 f150 no factory amp 8in touch screen, super crew cab, 6 speaker system

2015 town and country, harness to speed wire to add lc7I or dm810

Where I can order a T harness for 2016 Honda Accord w/double screen ?

Man he was so close to describing my problem. That thing where the two connectors don't have wires that matchup that's my problem and that's why I ripped out my fucking harness

I need a t harness for vehicle to connect to 6 channel converter

im having problem draining my battery because of my head unit, i tap the yellow wire to red wire so my head unit will not have constant power and i leave the yellow wire disconnected to any wire, it works but ky problem now everytime i switch off the ignition my settings are all gone. is it safe to swap the red and yellow wire? pls help me

After adding speedwire to a the T-Harness to the Lc7i, what do you do with the other wires that are on the other end of the t-harness?

Where can I find male to female quick disconnects that are color coded for the speakers to add to the t harness speaker ends so it can all be quick connects

off topic, but what are you guys doing with the ANC issues in so many vehicles today. some of the earlier GM and Honda's are easy but the new GM's are a different story. 2020 terrain, I purchased a harness from LLJ customs assuming they would bypass the ANC within the T Harness but that's not the case. They tell me only BOSE models has the ANC and that's not the case either. Nothing against those guys, they make a great T-harness just didn't do what I needed. I know I can disconnect the 4 mics and ANC would not work, however my customer would prefer not cut any wires. This terrain is the model with the Teal and Gray plugs at the radio module under passenger side dash. Any tricks you guys may know would be helpful. thanks My name is Dave Smith (Best Auto Sound & Security). PS the reason the customer does not want to cut the wires to the mics is because it would be difficult to reconnect, and he read somewhere and then I looked it up, it appears that new GM ANC some how is suppose to increase fuel mileage.. so he wanted to hook the ANC back if necessary.

I have a 2016 Silverado regular cab with the 7” screen. Anybody know the part number or numbers for the Metra or Pac parts that let me make my own t-harness. The green plugs that plug into the radio and plug into the car’s wiring harness. I just can’t spend $300+ on something I can make myself. I already have PET, shrink wrap, and a soldering iron. I just need those plugs. When I look them up on Metra’s site the pics for 71-2107 & 71-2108 dont have a female end. It shows 2 male plugs and both part numbers have the same pic.

I bought a pac loc t harness for an installer to use. He didn’t use it because I didn’t have the pac loc. I was a little disappointed he didn’t really understand what I wanted done with it

How much for a t harness for a 2015 accord

So if you have a "premium" factory system would you get an amp pro or wait for AR to do DSR1?

Hey guys is there a harness for a 2015 Toyota Highlander Non JBL? I have a LC7I and tapped into my factory speakers with no t harness. Im still getting sound even with the lc7i off which then puts the aftermarket amp out of the equation since it’s in line with the lc7i.. thanks guys!

where y'all locate?

But does leaving that dangling unplugged harness/ wires back there doing nothing let interference into an analog signal? Prob a such a small amount that you would never notice.. but im curious if it actually does? I believe in what your saying and that its the smartest thing to do regardless. Im just genuinely curious if there if there if is any at all. Could make for a good follow up video.. just a thought. Seems like it’s all about making it easier for the next guy to get back there. Or maybe Ive had one to many beers 😇

Can't find t harness for nissan pathfinder 2020

Which T harnees do I use for a Toyota Corolla 2018 .. I am going to use original stereo..lcq1 audio control, 1 amp alpine 4 channel for 4 kicker speakers in the doors, and 1 monoblock kenwwod amp for skar sobwoofer ... help by Which "t" harness to use?

Need a t harness for a 2016 Honda Accord sport

Do they make a T-harness for a 14 F-150 STX non Sony with sync?

I have tried to go to metra website and there is no way to purchase the harnesses from them unless you are a dealer.

What if they don't make a T Harness for your vehicle ... I have a 2021 Volkswagen Atlas Cross Sport

Screw it I will just use my headphones when in my truck.

The harnesses used in this video are outdated/out-of-stock, at least for a 2011 Altima... Does anyone know if this bluetooth harness from Crutchfield can be used in the same way? www.crutchfield.com/S-KF9kApZGgZt/p_120BT7550/Nissan-Infiniti-Bluetooth-Wiring-Harness.html

-processing & list to star & asterisk process on spiral;’

-guide as for reminder like antenna;’

I meant hello.

You can tell if you have CCA vs OFC copper because CCA can be burnt with a lighter and are springy and bounce back to their original shape. When you bend actual copper it will retain the bend. CCA shouldn't be used

For 2010-2017 Equinox and Terrains I build simple T-harnesses that work at the stock amplifiers so no need to pull the dash apart,pull the radio and find space to jam all that wiring in.I offer sub integration and full amp bypass depending on what the person wants to do.See my channel for video descriptions and more info.

Let me ask you a question? Does your Mother sew??? BOOM!!! GET HER TO SEW DAT!!! HAHA

T harnesses are worth every penny. Cutting a harness should be a last resort. If you're not familiar with the process, it's too easy to mess something up and complicate your install so you have a bad experience or unsafe install.

I have the 4.2 I what the 8 inch screen radio Factory gmc Sierra 2015

Mo by

$400

I Don't understand why you need to build a harness since you just can buy it or am I wrong? Need some enlightenment.