Well I switched all the bulbs back to regular bulbs and everything works fine. If I put in one led bulb in the place of a 1157 bulb everything flashes unless you turn the parking lights or headlights on. I have decided to forget the led and stick with the standard bubs.
I know this has been covered but I started by replacing all the wiring harnesses on a 70 Challenger and changing over to led bulbs in the dash and turning signals. I changed out the flashers to led compatible ones and put in a new dimmer switch on the floor and replaced the one in the dash also...