1987-1988 Ford Mustang Vehicle Wiring Chart and Diagram Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 1987-1988 Ford Mustang information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Mustang Ignition Switch Install - 5to (79-93) - YouTube Click to view on Bing1:16Broken Fox Mustang ignition switches are a common problem. They cause some very troublesome issues as they start to ware out - won't start condition, air condition A/C issues or the worst caseAuthor: Late Model RestorationViews: 114K Electrical - 1988 mustang gt wiring question | Mustang Hi my name is chris and I am new here. I am working on an 88 GT and it has sat for 17 years. I have gone over the wiring fixing mice chewed ones for new, probably easier to just buy new but my customer is trying to save his money. Anyway I got it running by jumping power to the eec relay..