I pulled the ashtray out of the Patrol, wrapped a few turns of electrical tape around the controller and wedged it in.
Has been there 6 months now and works well.
Bodgy but effective
Just be careful about the max angle that the unit can be mounted at.
I have seen some mounted such that the sensor "level" can't be adjusted properly and it didn't work.
I like to have the thing within arms reach to be able to use the manual override if req'd, hence the ashtray mounting
cheers
Gaz