ok i got some component speakers but to save wieght and money im selling the amp i was gunna use and just powering them off the hu. do i still need to use that cross over thing or can i just use the old wires as they are. should i find the main wires in to the door and use the cross over on that or are the signals going to the tweeter and the woofer already fine.

 

The crossovers that came with the components are meant for your new speakers specifically, and they will not sound anywhere near as good with out it.

You will need to connect it inline with from the output of the HU and then wire to each the tweeter and midbass accordingly.

 

In non-bose your stock tweeter door has a capacitor soldered on to act as a high pass filter. If you replace it with non stock and don't use a crossover you will be feeding it full range which will stink.

 

I'd keep & use the amp too. You'll be sorry otherwise.

 

What components did you get? Yah you should keep the amp to power
the front speakers. At least 100 x 2 rms @ 4ohms

 

SPS-171A there the type-s alpines

and i would like to use the money form the amp to buy other stuff for the car. wouldnt i only notice a differance in sound when i turn it up...realy loud. shouldnt it be fine at normal listening levels... the hu is an alpine CDA-9833. 60W MAX x 4 V-Drive Power Amplifier
http://alpine-usa.com/