thought on back up light

[Triathlete]

Just my opinion...I think it looks like @$&! up there. I would try to incorporate it into the cladding or maybe the license plate area. I think you will find it to more usefull mounted lower. Up high it will just blind anyone behind you or shoot over the top of whatever is back there.

[Mile High VX]

I personally don't like it on top. If you really feel that you need it I would mount it behind the half-moon piece of cladding and mod that piece.

I think that the mount would be fairly easy to do given that there is metal behind there and you could use some weather stripping to make it water tight.

If the PIAA bulbs will work for you then that's your best bet in my opinion.