Quote: Originally Posted by
Zupervinn 
but wait. should i get an Y adaptor so i can have 2 inputs for the rear speakers and 2 inputs for the front speakers? because right now my (front and rear) in put for the sound card is being used to connect to the amp.

no... you will be connecting only 2 channels to your head unit's aux-input. those 2 channels (stereo left and right) are carried on a single cable. the cable will have 3 conductors, left[+], right[+], and ground[-]) with a 1/8" plug at each end (assuming your head unit's aux-input is a female 1/8" jack). Like this:
your amp will be connected to your head unit's pre-amp (RCA) outputs. your head unit should have both front and rear RCA pre-amp outputs. the back of your pioneer head unit will look something like this:

your specific model may have some/all of the outputs in a separate dongle, but either way it should have them. connect these outputs to your amp's inputs the same way you currently have your sound card connected.
remember, you will only be using the front channels (FL and FR) of your sound card's output. so set your sound card settings to stereo (2 channel) output, since there will be nothing connected to the rear [surround] outputs.
