i am putting a amp in my neighbors truck, and when i got to the rca part he does not have any plugs on the back. Can someone tell me were and how much i could get one for.
Some amps have High level inputs on them. You could use those inputs on the amp. if the amp does not have high level inputs on it, you could get a high to low adapter. Way back when, before some crackhead stole my stuff, I had an amp installed to my OEM head unit. The converter did make some engine whine through the system, but it wasn't that irritating.
That was 13 years ago, I am sure the technology is better today.