my guess something lose and it vibrants when you drive ground power rca my car with my 3 12 wolframs subs i had a power run comming right off my alternator and then 3 batterys in the trunk and my car also came factory with a car battery under my seat and i had a 2nd power run comming off that and my car was shaking so much i vibrated the battery fassener under the seat comepleat loose my batter was bouncing off the floor like 3 inchs from the bass and vibarated batter bolt loose and i was making it sound like i was loosing a subwoofer so ya gotta probly go threw all your conections
Hey, how about getting some wire, get you a cd player with bluetooth, and has a subwoofer setting with front and rear r/c/a also, has three rows and get you a wire crimper, slice the wires and get you a toggle switch and put it on the yellow switch between the wires so you can turn off the radio with a switch when you're not going to play it, this is so you can have a factory radio hookup without moving your original and get you some long enough wires and have the blue radio hooked up so you would have to turn off your main the off that line converter with a wire and if you had an eq you be cool and run your r/c/a straight from your subs and rears and fronts, just also get a voltmeter reader if you wanted run some quick door speakers, and back even subs and would because a head unit in the arm rest or glove compartment,it could be built flipping out from the console, like on average where the cup holders or would have set near the cup holder upright, you don't have to go through them wires when installing a system wire you would like, longing the wires but putting them in on something rewindable to roll in the wires you, you'd have a new wiring method for aftermarket radio installation techniques! you know like just,red, yellow with a switch and just some R/C)A's have to be used to installing a radio for your system its,easier.
Even if the car has preamplifier's you'd have to wire around the factory one because you don't want a vehicle shortage and have to worry causing a noise or outage, save the time to buy using the aftermarket radio wires used on tweeters when you have the 3 types of R/C)A's style "RIGHT" stereo head unit then that's how you use a preamplifier from a aftermarket car radio.
If the car has a preamplifier, get the power for the aftermarket radio from in front of the car's old preamplifier and ground it down and get your red wire 12v constant, yellow for the yellow 12v, ignitioned right so they function with radio,get a radio long black antenna wire,plug it into the aftermarket radio and find the one from the vehicle's area, splice the wire and wire into the cars radio if you want all the features to work on the aftermarket head unit
