I have a 2012 DJ with 4.3 uconnect system. Radio started acting up by losing presets. then a short time later, screen went blank. Disconnect neg battery cable and checked fuses. All checked good. Pulled Uconnect form dash to see if anything obvious was wrong. Again, all looked ok. Put everything back together and hooked up battery for a "cross finger" check. No luck, still blank screen. Started looking up parts for a new screen. Found for $650 - $750. Bummed out. Three hours later started car and Uconnect works fine!!!! Gremlins???? This happen to anyone else?