Installing $15 Bluetooth Gizmo for Music in 6v Positive Ground Cars [Collector Car Guru Workshop] 

+ to + and - to -. Theoretically, it is important to keep the correct polarity with speakers to ensure the speaker cone moves correctly, but in practical application of car-sized speakers and lower watt amps, you will likely never be able to discern the difference with audio clarity with reversed polarity...nor will it be a factor in the longevity of the speakers.

@@CollectorCarGuru Thank you for your support. Did you use the supplied power pig tail? The wires seem very thin, Any concern? Considering 6v likes thicker gauge wire.

@@buildnskate9386 yes, use the supplied pigtail. The amp unit doesn't draw many amps (less than 2), so with Ohm's Law, the wire can be tiny. The reason you need thick wires supplying the starter circuit in a 6V vehicle is because you need half resistance when there's half the volts (6v vs 12v) to push the same amount of cranking amps (number of amps over 30 seconds), which in a 6V car battery is somewhere around 600-1000 -- or 20-33.3 per second.

Link in the description: www.amazon.com/MakerHawk-Amplifier-Bluetooth-Theater-Speakers/dp/B08Z3FBSDT/ref=sr_1_2?crid=344WWQXKJAI41&keywords=WHDTS+%E1%B8%84%E1%B8%B7ue%E1%B9%ADoo%E1%B9%AD%E1%B8%A5-Compatible+Audio+Stereo+Power+Amplifier+Board+Module+BLE5.0+Dual+Stereo+Output+50W%2B50W+5V%7E24V+%E1%B8%84%E1%B8%B7ue%E1%B9%ADoo%E1%B9%AD%E1%B8%A5+Receiver+Module+with+Case+DIY&qid=1650574049&sprefix=whdts+%E1%B8%85%E1%B8%B7ue%E1%B9%ADoo%E1%B9%AD%E1%B8%A5-compatible+audio+stereo+power+amplifier+board+module+ble5.0+dual+stereo+output+50w%2B50w+5v+24v+%E1%B8%85%E1%B8%B7ue%E1%B9%ADoo%E1%B9%AD%E1%B8%A5+receiver+module+with+case+diy%2Caps%2C218&sr=8-2