how's this setup?
 

2001 w/bose

keep bose h/u

add PAC AOEM-NIS2 with 4 RCA outputs

Front Doors: Kenwood KFC-1689ie 6 1/2" 3-way RMS 2-50
Rear Doors: Infinity 5002i Reference Series 2-way 5-1/4" RMS 2-45
Trunk replace sub: Rockford Fosgate P18S4 8" 4-ohm 50-150W
Main Amp: Rockford Fosgate Punch P4004 50 W x 4 @ 4 Ohms RMS
Sub Amp(running off the preamp of the main amp): Rockford Fosgate Punch P3001 150 W x 1 @ 4 Ohms RMS
Tweeters: Infinity 1001t 1" Silk Dome Tweeters 2-50 watts RMS

Hows this setup look?

Is there any problems I will encounter?

I have never had to do tweeters before, will i need to have separate power for these? It looks like I used up all the power on both amps. Does this mean I need more power for the tweeters? Just let me know if this setup works and I am not missing anything.

Thanks

get rid of the infinity reference, they break, fast and easily.

How about

rear : Infinity KAPPA52.5I

front: Infinity KAPPA63.5I

with the rest the same.

you might as well go for some component speakers up front and put the kenwoods in back.