i have a phoenix gold amp that does 4 ohm 30/40 WRMS x 4, 2 ohm 40 WRMS x 4, or 4 ohm bridged 120 WRMS x 2. i have a 94 ford ranger regular cab so im not sure if i should go just door/fronts with higher rms speakers or all four for more cone area. id like to spend less then $150 as im looking for a decent but cheap SQ setup. i listen to rap/hip hop and already have a sub and ill be ordering a HU soon too. im also stuck on these three HU so any imput on those would be helpful too.

Kenwood KDC-448U (KDC448U) In-Dash CD Stereo w Variable LCD Display
Kenwood KDC-X595 (KDCX595) Car Stereo w/ LCD Display & SAT Ready
JVC KD-R820BT (kdr820bt) In-Dash CD/MP3/WMA/WAV Receiver with