Awesome, glad you found a solution and posted for usThanks. I tried all that but then I read somewhere that someone had something similiar and it was because one of the seats was unplugged. So I looked under the seats and the passenger seat was unplugged. Light isn't blinking anymore.
I may have said it already, but I also had an 88 Crown Vic, but a 302 fleet car, manual windows and locks, no cruise or clock, and an aftermarket radio. Our new Charger takes me back to those days a bit.