We have been requested to install a reverse alarm to a Linde E16C S/N 335J (1998).

It's not immediatly obvious where we can take a tap off to power in reverse only and something makes me think i've had a conversation regarding switching on a setting in the control panel (although could be miles off).

Does anyone have a wiring diagram they could send to me for this machine, or any info that would point us in the right direction (so to speak :-) ).