This is next up on my list to fix.

Is the contact ring on the back of the wheel, or where the wheel mounts/behind the mount?

I'm gonna try and clean it first and see if my SRS light stops flickering on the freeway.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k