My stock headunit is crapping out, it keeps throwing error's at me, and when it does play, it plays as if the CD were scratched, even when they look perfect, so I know I need a new headunit regardless, but have been thinking of putting together a system for a while.

Honestly, I'm not looking for a system that is going to turn heads when I drive by, and I don't want something people a few cars down, or people a few blocks down to hear. All I want is a little more bass, and and to be able to be a little louder before it gets distorted.

I have 6.5's all the way around, all coxails.

Anyway here is what I've been looking at:

Headunit: http://iweb.alpine-usa.com/pls/admn/...y=45&p_main=10

Speakers: http://iweb.alpine-usa.com/pls/admn/...y=90&p_main=10

I'd most likely pickup those speakers and the headunit, but I also know I need an amp for those, the only problem is, I don't know what amp to get it.

I am curious if this amp would be enough for simply just the HU and speakers, or if it would be under powered or over powered.

http://iweb.alpine-usa.com/pls/admn/...=120&p_main=10

But of course I also want a sub eventually, and I've been looking at this one.

Sub: http://iweb.alpine-usa.com/pls/admn/...=150&p_main=10

Now my other question is, would this amp...

http://www.sonicelectronix.com/item_368.html

...be powerful enough for the 4 Type-R speakers, AND that sub, [Along with, if that Alpine amp is powerful enough for just the 4 speakers?], or would that Alpine one be able to power the 4 speakers and the sub, or if I need a second sub.

Or would that HU + these speakers...

http://iweb.alpine-usa.com/pls/admn/...=104&p_main=10

+ the sub + the second amp [or even the first] I mentioned be enough?

Basically...

HU + Type-R Speakers + Alpine amp = enough?
HU + Type-R Speakers + Type-R Sub + Alpine amp OR Hifonics amp = enough?
HU + Type-S Speakers + Type-R Sub + Alpine amp OR Hifonics amp = enough?

Thanks!