Thanks, I just got a reply from Axxera and they suggested the same thing. Said it was located below the USB port. I'm assuming it's the one on the head itself. I won't have access to the rig until Wednesday.
They also said that there is a fuse on the rear of the unit itself. I know that there is a tool, two actually, they send with the radio when you purchase it to remove the head from the housing. Does anyone know of a work around since Thor still has the tools that came with mine.