I have a 2013 Ford C-Max. I was hit in the passenger side last summer (2017) and had to have my door was replaced. After that, my horn went out, so I took it back and they said they had to replace the entire steering column. Around the time that I got it back from the horn not working, we were coming home from a long trip, and my speakers popped and I had no sound. Radio buttons and screen were all good, but nothing was coming out of the speakers. We went to the gas station, turned off the car, went into the store, and came back out, started the car, and we had sound again. My speakers have been doing this periodically for months now, I have had it at the dealership 2 times, and they cannot figure out what is going on with it. This week, it has gotten worse, every time I get in the car, the radio comes on for about 3 seconds and then it's out. So if anyone has any certainty to what might be causing this. Please let me know. Thank you!