If you want to change the radio, it's pretty simple. you need a wide blade scraper like a spakel knife, and a phillips screw driver. You could even go to one of the national franchise places like Best Buy, or Circuit City, and they will install a new unit for free. If you want to do it yourself, as I said it's easy. the adapter costs about $3. I would pull off the black Bezel cover where the clock is and make sure the connector on the back is locked in by the clip on top. That controls the clock and radio. If it is not seated all the way in, the clock will keep blinking and the radio will not keep its memory. If you need the address for the adapter, email me