I've attached some of the generic back up beeper things (4 sensors, 1
beeper) to my rear bumper - they're powered from the reverse lights.
Seem to work well enough, and were simple enough to install.

On 6/3/2017 16:40, Harry Hoffman wrote:
> Hi Folks,
>
> I'm curious if anyone has installed blind spot sensors in their van?
>
> I'm doing some research about the possibility of using them up on the roof
> where I have racks that extend beyond the roof and a Thule box that raises
> the overall clearance requirements.
>
> Cheers,
> Harry
>

toodle pip,
--
       Dug Smith          | Terry Pratchett: It's almost
(mailto:dug@dugbert.com) |  impossible to ride a rock and roll
(http://www.dugbert.com) |  motorbike and stay on for three verses.