How do I/Can I add an amp to the stock MY '03 HU? How does that work? Are there RCA out's from the HU for front, Rear, and Sub, or just one set of ouputs that I route to the amp? Then I jsut run speaker wire from the amp to the speakers, right?

Sorry for the newbieish questions, I have never used a separate amp before.

 

Stock HU is going to have only high level (speaker) outs.

You could:

A: get an amp that accepts high level inputs
B: use a high level to RCA converter

 

Also, note that the harness for the stock HU only has speaker outs for the front speakers. The rear speakers are not available from the stock harness. If you need the rear speaker outs from the stock HU, you'll need a different wire harness. Lucid makes a plug-n-play harness that makes it easy.

 

Thanks Guys. That helped alot!