I have a 2012 limited with JBL non-nav radio. The head unit turns on when cold (first power-on of the day) and then generally won't turn on again until the next day. I have a good ground and 12V power in the E2 connector. I also measured good resistance values on the AVC-LAN pins on the E2 and E16 radio connectors. I also noticed every time I reconnected the E2 connector on the back of the radio, the radio would turn on once and then not turn on again until I disconnected and reconnected E2. Has anyone seen this problem before and is there anything else I should check before giving up on this factory radio?