The Alpine headunit I was looking at is the CDE-123 as it is the cheapest Alpine HU with 3 sets of preamp RCA outputs.

Of the Alpine amps I was looking at were MRX-F30 and the MRP-F300. I still plan on checking out some car audio shops to listen to what they have. I'll probably also check out the speakers they have as well. I plan on mounting the amp under the rear deck. So, I'll have to see what can fit there and if the amp can handle being upside down.

I may or may not later on get a sub, but would like to have some bass coming from the speakers I put in since I may not put in a sub later on.

I'll probably just stick with coaxial speakers for the front since that will be simple bolt in.