I upgraded mine a couple weeks ago it was very easy to do but you will need to change to wires around on the connector to make the new head unit work properly. Basically you need to reverse the constant 12 volt power wire and the switched 12 volt wire. E-mail me at: frank-hasbrouck@peoplepc.com for more info. I put in a sony head unit and changer that sound 100% better than the stock.