2003 BMW 525i Base 6 Cyl 2.50L
Body & Interior
I HOOK UP RCA JACK STRATE FROM THE SPEAKERS TO AFTERMARKET AMP NOW THERES NO SOUND COMING FROM THE STEREO WHAT DO I DO?
Your car works on dc voltage but speakers work on an ac voltage. the out put on a stock radio is much higher then what an rca amp input is capable of handeling. You need to run a voltage line drop device between the stock radio and the amp. If you lost sound try hooking a speaker back up to the stock radio output to see if the final ic in the radio is blown. if no sound then you need a new head unit. If you have sound then yo probly blew the amp. if you dont want to run a voltage drop device then try an amp that has a high level input. most amps use 2-5 volts on the low level input (rca). Hopes this helps :)