Just use any bolt location on the chassis in the engine bay, an existing one is fine, just scrape the paint off a bit where it will be bolted down, you can use about 100 locations under the hood.

And make sure you put the fuse within 18" of the fog light trigger, not the opposite way around (fuse by the headlight)

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards