How to route PV cable from rooftop to second battery/controller inside the truck?

outdoornate65

Adventurer
I've moved my RTT from my truck to my trailer and now have room on my roof rack to mount my Renogy 100w solar panel.

Wondering how to route the PV cables into the truck to the second battery? I'm not opposed to drilling a hole in the roof of the 4-Runner if needed but want to ensure a clean/weather-tight install.

My panel has MC4 connectors.

So if you've run cables through the roof of your truck, Sprinter van or teardrop, I'd really appreciate feedback on how you routed those cables and pictures would be a huge bonus.

Thanks a ton....

Nate
 

loonwheeler

Adventurer
One option is to use a cable clam. They provide a weatherproof way to pass cables and wires through your roof without leaking.
 

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