Outer Limits 4x4 Board

1993 RRC 3.9 auto on gas

I have a short in my parking light circuit, immediatly blows fuse.
The short is in the left (pass) side circuit and so far I have removed the rear lights completely, the number plate globes, the front parking light globe, the trailer wiring circuit and it still blows immediately the light are turned on.
I guess I'm looking for a short in the wiring loom somewhere. But where?
Does anyone have any idea where the loom would be most likely to short out other than at the lights themselves.

Found It!!

My fault!

I fitted a new stereo unit and what I thought was the power lead for the antenna amplifier is in fact a lead for turning the original stereo display down when the lights are on.

Disconnected it from the stereo and all is well now.