gauge cluster

[hardwarp]

Hello all...I just got my 71 going and when the headlights are the fuel guage high beem and blinkers all flash when the turn signals are on. If thelights are off everything works fine.

I have replaced the light switch and it didn't help. I'm thinking maybe ground but everything looks good and the wiring hasn't been hacked up. Any help would be greatly appreciated.

I will add all of the lights work it seems to be tied to the guage cluster.