Bought used 03 in Janurary. Started driving daily in April. Twice now I've had the radio come on but no sound come out the speakers. I just pulled over restarted truck and It worked fine. Anyone ever hear of that? I also had the blower go out. I had mechanic replace a blower relay or switch not sure. Had it quit working again. Next day I was bringing it back and it worked fine. Any insight on any of this issues would be apprieciated.