Fuse block Cavity #6, 20 amp fuse issue

[Chall73]

Hi folks,
Has anyone had an issue with the #6 cavity on the fuse block blowing fuses? There must be a short in one of the circuits it powers. Cavity 6 on my 73 Rallye Challenger circuits are the rear defogger, temp gauge, fuel gauge, oil gauge and voltage limiter.

Any help would be appreciated!

Thanks,
Mark

 

[72RoadRunnerGTX]

That would be the accessory circuit, there is a three-way accessory tap near the radio on that circuit, rear defogger should be plugged into it. Assuming all stock, disconnect anything plugged into it, one at a time until you find the over-current load. If it still blows with all tap loads disconnected, can only be the voltage limiter.