Omg. I can't believe u can't buy it separate

Just looked on eBay. Isn't isn't that part is it?
Look at this on eBay:

Parking Sensor Mount for BMW Audi E39 E46 X3 X5 E38 E53 PDC Sensor Holder New

http://bit.ly/H6X4fV

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2005 E53 X5 post facelift