Some of those not a big deal... As far as the radio goes just get an after market one and solve that problem. As far as the tail lights that is a very common issue. Tires mismatching can be a cosmetic problem. But dont really see any major problem with that(unless the newer GP's use 17") Wheel sensor is not that bad. It would just be a couple of hours of work. The key problem, I really couldn't help you with that...