I recently bought a 2002 UL and the NAV screen was very dark and cracked due to the years of Florida sunshine. The old screen was flickering and I was hoping it would go away upon replacement. When I put a new replacement NAV screen, it is still flickering every couple seconds. I have suspicion to believe that the radio/CD module connections could be causing it to flicker. Before I plugged the radio/CD module back in, it was working with no flickering. Has anyone else had this problem?

 

Could you share some pictures of what the flickering looks like?

I have the same issue with mine, but it’s caused by the defective harness by Navtool for the backup camera. They didn’t pin it properly and refuse to accept fault. I was able to isolate the issue to that one particular harness, so yours might be similar with factory nav

 

i would start by getting some electrical contact cleaner spray, and making sure all the connectors in the trunk are 100% clean