My instrument panel on 1987 300ZX stopped working after a stereo was installed. It lights up but has nothing on the display and to make it worse the defrost doesn't turn off. Also the dome light stopped working. I checked all of the fuses none are blown. The ac blower fuses aren't blown but there's no power going to them. HELP!!!!

Its the connection to the power supply module that is connected to the intrument panel. Its about the size of a cigar box and is silver and is left of the stereo. you will need to remove the panel under the steering colum to access it. wiggle the harness that goes from the inatrument panel to this power supply module until you instrument panel works again. i don't have a permanent soution except to buy a new panel. I am dealing with the same problem.