I also found on ebay someone selling a factory bumper that has the holes to accommodate the cam
http://cgi.ebay.com/ebaymotors/H2-Hu...ht_2308wt_1831
However, any good shop should have the tools to cut through the metal. After reading how the factory nav screen works, it's pretty cool as it automatically comes out and retracts when in and out of reverse. Seems to me that the only wiring consideration other than power is to the reverse wire.
Has anyone done this yet?