You can install the OEM hitch [cost of kit close to $500] yourself, if you can locate one with all its parts. View earlier threads for the instructions, my post on dealer-stock OEM hitches, and a poster in AZ [e30?]'s maddening experience with both an aftermarket hitch and assembling the parts via ebay. If you are going to pull any significant weight at all, and not, for example, hang a bike rack from the hitch, best to stick with OEM. These aren't body on frame pickups, where attaching an aftermarket hitch to the rear frame is easy and cheap .....

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2006 X5 3.0 6-spd w/Evo UUC ssk
sport/premium pkgs
born Valentine's Day, 2006.