Your not gonna be able to hook your ipod directly to your speakers, also for furture reference, there is an audio section for questions like this.
As far as getting your car on Pimp My Ride, unless you live in California its not gonna happen, and if you do by chance live in CA then you just log onto the MTV's website and find Pimp My Ride and im sure they have aplications on there. I doubt highly youd get onto the show, besides your car would most likly be stolen within a week considering your current luck, or lack there of