1995 coleman spa model 411...system control pannel issues....I had issues with the lights for the display being burned out, when replacing them found all wires to be badly deteriorated. was able to cut & replace all the wires into the pannel but one wire which is grey... all functions normal except the LCD display doesn't show anything I think it is due to the grey wire not being connected. could use either the wiring schematic for the control pannel or if someone knows where the grey wire is to be connected??. thanks
if not then a replacement part