[Dnick]

I know nothing about audio, but many here are absolute experts..... so why am I answering??? .... only because I just read a bit of this thread below that looks like it might be of help to you. Good Luck, and fyi, there are many many threads here on the subject if you want to search around for different ideas/options. In the mean time, check this out:
http://www.ridgelineownersclub.com/forums/showthread.php?t=110330