Hey everyone I uninstalled a Panasonic CQ-C1300U out of my Pontiac Grand Am to hook up my rca cables and remote turn on lead for my amp. The HU worked fine untill I uninstalled the head unit againt to properly place the wires and 0000000000 appear onto the screen and stop working and I was wondering what could be the cause. If any one have a answer please Thankyou in advance.