Worked Great, next question Can one use an 05 and 03 Control Heads in a dual control configuration of an XTL5000- if so how do you enter into FPP mode on a 03 Head?

I have VHF XTL5000 which I would like to have dual control heads on. I set dual heads up in the CPS with one active and assign a F/R menu option, but when I connect the second control head I receive "CH ID # ERR".

Does anybody know what "CH ID # ERR" means?

Thanks