nWoJester

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.

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HyperZulu

This doesn't really revolutionize general thought. Sound cards put out a low level signal, ie an unamplified signal. Enough to run a set of average headsets, but really a disservice to you if you care about how your audio sounds. Even a regular head unit puts out a high level signal.

You're free to do what you like with your car, even if it's the wrong way to do it. But if you were researching, then that means you were looking for the right answers, which you found... Dunno what to say other than, good job? :P

scatebase

After looking at the harness you used, it looks like your car has a factory amp. For most people, this will not work. Most cars have the amplifier built into the head unit. You need some type of amplifier to power speakers. Without an amp, the signal is just too weak. This will work for headphones, but not car speakers.

nWoJester

I did fail to mention that I had the "premium" system in my ride, which does have an amplifier mounted in the trunk underneath the rear deck. Thanks for pointing this out.

samail

Hi,

For a moment, I thought I could do away with an amp too. Well, looks like the amp is still needed for powering up automotive speaker thru sound card. Unless that is if you are fine with using PC speakers instead.

Sam

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