Thread: No Amp Needed for using PC as a Head Unit

I have been researching and searching though these forums to find out if it was possible to hook up my sound card directly to my factory wiring harness. Every possible answer was to rewire the car speakers to an aftermarket amplifier. Well, I'm here to say that this is not the case.

I purchased the aftermarket radio wire harness for my car. It was the Axxess GMOS-04 which had RCA Inputs instead of the normal wiring for the speakers from the Head Unit. I connected the one end to the wiring harness and the RCA Input's to my sound card's front and rear outputs, using a stereo jack to RCA converter for the rears. My front outputs on the Sound Card were RCA already.

Granted that you will not get true surround with the Rear Speakers (balancing and stereo, etc..), but it creates a less of a pain to run speaker cabling thorugh out the car and rewire the speakers. Of course you could use existing speaker wiring from the front of the car, but that is always fun to find out which color wiring is for what.

The only thing I failed to do at first, was to connect the "remote on blue/white cable" to my M3-ATX PSU's remote on connection. Usually this gets connected to the aftermarket head unit to "tell" the GMOS-04 harness to turn on. At first I thought it was for an external amplifier.