A dead man’s naked body was found in the back of a vehicle yesterday afternoon. San Luis Obispo County Sheriff’s investigators say they received a call about the man at around 2:30 p.m… He was found on T.V. Tower Road, just over a mile from the Cuesta Grade between San Luis Obispo and Santa Margarita. Sheriff’s spokesman Tony Cipolla said detectives found no obvious signs of trauma or foul play. An autopsy, scheduled for later today should provide a cause of death. It’s the third time a dead body has been discovered in San Luis Obispo County this month.