Even if they could do it will probably cost twice as much as getting a tuning company to do it you're wasting your own time. Call every motorfactors in your town and ask them to recommend someone to disable vmax, I'm sure one of them will know.
Hope he can sort it mate, reckon it's ECU/BSI type map program unless somewhere under the dash there's an aftermarket plug in speed limiter box,
My aftermarket cruise ECU/connectors is located behind the trim panel under steering wheel, where he tapped into the speed pulse wire somewhere near (I assume) the throttle pedal potentiometer (fly by wire)
I believe as well these cruise devices have a limited option (which I've never looked into using) so I also assume there are aftermarket plug in units that would possibly be used in bulk by firms buying/leasing a block order of vans
But I also may be wrong on all counts
Good luck tomorrow
Exactly right it is in the eeprom and bsi so i am told just need to know how to sort it.
Well done, lucky find too
Check the bulb holder for corrosion also the witting connectors to the bulb holder the earth can open up (female terminal) and corrode, the plug opens up and you can clean the terminals and close it together again)
Normally all lights play up but worth checking
Possible Rev light switch