I noticed a slight burning smell while driving yesterday and when I came to use the reverse camera noticed that the head unit did not power up and display the rear view. Also discovered that the folding mirrors stopped working. I think a cigar lighter power-splitter had shorted to cause the problem. Obviously I'm going to check fuses but wondering if the cigar lighter, heard unit power, and folding mirrors are related in any way? Everything else electrical seems to be working.