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