From what I understand (and correct me if I'm wrong), I can use the stock amplifiers and 'drop-in' 2ohm components for the front and rear for improved sound. I will probably add a subwoofer as well with a small amp, and keep my upgrade cheap and as 'stock' as possible. I'm going to leave the center speaker alone since if I get the right components, I probably won't even hear it

Anyways... much obliged for any help on this. If you have any recommendations above and beyond this, it'd be helpful. Again, I'm trying to keep the installation simple and cheap... so anything to that affect would be helpful.

Thanks!