Been hanging around the site for awhile just registered today. Need help with an issue that we can't solve. 2006 300 Touring - my dash lights are going crazy - flickering - flashing - all the warning light come on and turn off and the rpm and speedometer needles drop to zero and bounce back up. This happens non stop while I am driving at any speed. While this is occurring the car continues to run and the exterior lights stay on , the radio keeps playing but the ac shuts off and seat heaters will turn off and I lose abs function I think or traction control because if I'm turning while it happens the car shudders. I've also noticed that my dash light dimmer knob rarely functions and when I turn the knob all the way to illuminate the interior light they do not come on except immediately after the dash has flickered. I have an aftermarket sound system and recently had everything removed and reinstalled professionall with a PAC interface for radio and all amps and grounds redone. The problem went away for a few months and returned now worse than before. When I unplug the deck and interface module the dash activity does calm down drastically (it's not continuos while driving) but still occurs frequently like maybe 5-6 times in a 5 minute drive. So even with all the stereo equipment unplugged the issue is still there.This issue concerns me because I'm worried my car is gonna burn up or fry the computer. I don't where to look for assistance. I have spent days on end scouring the web and others have the issue but no solutions. Please help anyone. Your time is most appreciated. I love my cer and hate the thought of having to sell it . Thank you in advance