[S8track16]

I completely agree with Nas. For the subs, you don't have to go extremely high end to get decent output. My first setup, a couple years ago, was just an Alpine MRP-M500, and a JBL 1214D 12" in a prefab box, with a wiring kit you can get from Best Buy. The whole thing cost like $300 I believe and it sounded great for only being a 300RMS sub.

In terms of head units, I would stick with alpine, pionner, or even kenwood. I had a jvc deck before and it was overrated. The specs stated it had 4.8v preouts and it wasn't even close. The pioneer single din decks can be really good and are more affordable then say, a double din.

Depending on how loud you want to be and/or your budget, you may just want to run speakers strictly off the deck rather than have a separate amp. Keep in mind that virtually all stereos clip signals near the maximum volume. For example, my current deck: Pioneer avh-3200bt distorts at volume 37 out of 40. To the make speakers last longer and perform optimally, don't constantly have the volume at max.

Also, if you are on a budget, I wouldn't recommend going over the 600WRMS range as then you get into the area of requiring larger gauge wiring, upgraded batteries, Big 3, potentially h/o alternator, etc.