And here is the problem. I figured, that by the time the Grenadier launched there would be a host of after market accessories including the option to fit a Tow hitch with Ball & Pin, or Ball or as some are saying a 'NATO claw' style. But as i have been informed directly from INEOS, no such after market accessories are yet availabe, so no after market wiring loom to facilitate the 7 Pin or 13 Pin single or double electrics needed to power lights etc on trailers. The fitting of tow bars seem straightforwards, however the wiring loom not so. INEOS are very unclear if this will ever be resolved. So, if you are ordering one, make sure you add the Tow Hitch option.
It might have been resolved already...out of the depths of the Austrian mountains. It's gonna be a matter of time, before the wiring loom becomes available. Will be pricey though, probably as much as the entire tow pack ex factory, so always best to order with tow pack / receiver.