The bar was already fitted on my T6 by the previous owner, but the electrics were not. I completed this using the PF Jones 7pin electric kit recently, I deviated from the instructions a fair bit tho!
They tell you to route a cable under the passenger seat, to then connect 2 wires together and do nothing with them - i removed this part of the loom and solder heatshrink the cables to negate the need to enter under the seat at all. Additionally i mounted the module under the dash in front of the BCM (instructions say to put it under the bonnet by the battery and run a feed of the battery) i chose to run a feed from the fusebox in the middle of the dash. Finally i didn't run the cable underneath the van at all, choosing to run it inside down the driver side, under the mat/by the step then in to the back behind the panels/carpet.
The instructions say to run wires to the BCM via the engine bay (assuming your fitting the module by the battery)...i never did find the grommet they say is close to the master cylinder in the bulkhead, however as i put the module close to the BCM it negated the need to have any 'aftermarket' wiring on show anywhere. i also didn't user the scotchlocks provided, i prefer to solder/heatshrink.
Good luck with the fitment!