ok pioneer sucks! been jacking with this thing for months

... when it is 90or above and i get in a hot vehicle stereo wont work... after ac cools truck down and u shut power down to truck and restart it will atart worki.g again... any ideas?????

Park in shade? Lol really no ideas. It may not be meant for this weather, it is after all a computer... Computers also overheat easily.