When I got my tow hitch put on, I think they wanted $70 for the wiring but, I ended up getting the wiring harness for free. When I got my X the wiring was sitting in the trunk, and when I got the hitch put on they used that wiring and still wanted to charge me $70 for the new wire. I noticed this when I was reading the bill, so my mom and I got in a big arguement with the dealer, and we got it for free.
I dont know if this helps you at all, but it just shows you that the dealers always try to shaft you.
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