Radio display and AC does not work

Hello, I don't know of a link between the audio system and the air conditioning system. So, as such, I'll suggest separate testing. The audio unit - you'll want to ensure there are no blown fuses. And, you'll want to ensure it's not a lighting issue -- that the backlight of the display is all the way down and needs to be adjusted. For the air conditioning system, electrical testing of the system from the compressor and switches under the hood to the climate control system inside the vehicle must be performed. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops