The ISIS Powered Master Cell is in place inside Built to Cruise. We found a nice spot right above the driver side kick panel and it is accessible without having to remove any interior panels. All the wiring is done and all accessories are working properly… brake lights, headlights, turn signals, parking lamps and reverse, ignition and starter. All is good to go. Look for a detailed blog at a later date with all our steps installing the ISIS Powered system in the Mustang.