CDR 24 display not working

[MFX]

Hey guys,

I just bought my '06 Cayman S last week and I pulled out the factory head unit to install my blue tooth hands free kit. I followed a you tube vid to pull out the head unit. No problems. I ran out of time so I just put it all back together without tampering with anything. When I then tried to turn it on... Nothing. I pulled it out again to see if there was any loose fittings, gave them a wiggle and the sound came back, but the buttons did nothing. After a few tries I got the sound and buttons working but the display is blank. Any suggestions?