Replacing the deck is extemely simple, especially if you are installing a stock CD/Radio deck (which you can find for 50 - 75 bucks on Ebay. Your Neon is already wired to plug right in and will not...
Take it to your local Tweeter, HiFi Buys, or Sound Advice. :) or If you have a 2001 MPV (or a year close to it) this should work. It's really very easy. One thing to note is the Mazda radio is twice...