My 02 GP has the factory Bose AM/FM/CD player in it and all work fine. However, in the upper left corner where the clock and station display window is located it is totally black. IF I go to the junk yard and purchase another factory unit what information do I need to get off of the donor vehicle so that I can plug it into my car and have it work? On the face plate of my radio it says Theftlock. Thanks for your assistance, Bill