So to make a long story short, basically the other morning after work I get to my car and it's about 28* F freezing cold. I start my car and my radio comes blasting on, like deafening loud.... I try all the buttons/knobs on the radio and steering wheel and nothing works. Volume, stations nothing. I then turn off the car, pull the key out and the radio is still blasting for about another minute, then shuts off. Now it won't turn on for anything, all buttons radio related don't work. Nav and OBC still work fine though.
Any thoughts as to what caused this or how to fix? Thanks