stock speakers sold on ebay for $31.00 plus $10 shipping.

I will have to ask the radio place (america radio) how they did the hook up. i know they have the amp hooked up to the stock head unit and had to put some sort of little box to keep the line from being fuzzy with static and some feedback (had to do it in my old truck too), but other than that, i will have to get back to you.