Earth points in garage/rear of van

I’m finally about to add the solar panel and controller etc to the van leisure system and need to find an earth point for the controller. The van was already converted and I can’t see where the earthing cable goes off too. Before I pull anything out as it's all nicely fitted in place, I wondered if anyone knew where there are any other earth points in the back of the van? Ideally drivers side as that’s the side it’s all fitted. It’s the new shape April 2017 lwb Crafter. thanks in advance!
 
Thanks for the replies 😊. I did in the end use the battery -ve and it’s all working a treat. I hadn’t thought of a rivnut!
 
Back
Top