Well i finaly got around to getting a new deck for the box, and actually a new sub to.
I was on a budget for this one so here is what i scouped up:

Pioneer DEH-P5900IB. Paid $150.00 for it. it is last years model but it looks decient for my day to day usage.

and

Rockford Fosgate P2L-110. Its a smaller 10" sub, but it is a P2. i acutally got it for a good price as well. $ 199.00 and free shipping to my house.

I will be runing it of a rockford single channel amp i have . I went the 10" because i listen to mostly Rock and dont require a great deal of bass.

Dose any one have any exp with these units? How where they?
Next step will be to upgrade the factory speakers.

 

A 10" will put out surprising bass. I have an Infinity Basslink II and I have to keep the level no higher than 50%, otherwise it's just too much.