Like the title says on my Pioneer DEH 7200, when i put my face plate on, 90% of the time the display doesn't show up, but it shows up when i push on the faceplate. Other times it comes one but if i hit a button on the bottom it blanks out again. I kinda figure it is the contacts on the headunit it self, but what can do to make it work right? TIA

 

carefully clean the contacts with rubbing alcohol.