The factory radio/cassette player was recently replaced with a new Pioneer unit. I now have an apparent grounding problem that is driving me crazy. My fuel gauge now always shows dead empty when I know I have a full tank. When I turn my headlight switch on, I have no instrument cluster lights except the turn signal/emergency signal indicators, which just stay on. The high beam indicator works, but only when the headlight hi-beams are actually OFF. The speedometer doesn’t work, the factory clock stops, the temp gauge is dead. However, in daytime driving, those 3 items work, though the fuel gauge stays dead all the time. I’m not a D-I-Y’er, so a friend of mine who is experienced in installing aftermarket sound systems did it for me. He’s at a dead end at trying to troubleshoot this problem, even with my Bentley manual. ANY suggestions, advice, guidance, etc., are encouraged and welcome. THANK YOU!
