UPDATE:

Much better now. I clamped the seat belt out all the way and went over it for 2-3 mins with my Rowenta steamer (I used it to press my shirts in the house), did some deep steaming and just wiped down with MF towel. Seems to do the trick!

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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