A few weeks ago my hood latch broke and while driving in the highway my hood flew back to windshield. I was able to drive to the emergency lane and secure the hood. The next day, I tuned on to am radio and it was inoperable. I took the car to a body shop and they fixed the hood and realigned it. Since the repair, I get static on my fm when I go under an underpass or highly congested areas with tall buildings. I'm thinking one of the ground wire was damaged... can somebody help? The fm and am were working perfectly fine before the incident...