What about if Toyota themselves hard wire it in for you.

I can understand their reluctance to endorse presumably others tinkering, seeing some of the bodgit and scarper wiring messes made by the various cowboys who have fitted our lorry's blower/hydraulic switching plus phones/trackers/telemetry tracking/dashcams often resulting in hacked dashboards trapped or hanging wiring etc etc i would be wary too.

Can you find an old school sparky, this is what i did with my Hilux for extra interior lights, extra reverse lights, towbar wiring, f/r parking sensors etc, never caused a moments problem and nothing ever mentioned at the dealership.

Is the dealer a town based or chain, you might get a better response from a more rural area indy dealer who's mechs and service staff know Hilux is still old school (all the better for it) and not fitted with electronic junk likely to have a hissy fit for no reason at all.

Edited by gordonbennet on 13/02/2016 at 11:32