Radio issue Buttons not working!!!
 

I recently removed my radio and now after putting it back Now the radio and ac display is not coming on... all the backlights work but no function from the radio buttons...the steering wheel controls do work the radio still, what could i have missed when putting it back together... i have checked the connections i know o

PLEASE HELP!!!


I have read that there is a proximity switch somewhere behind the radio... anyone know exactly where?