What a difference it makes to the car with TC turned off. No more holding back or power being cut. Well worth fitting if you haven't got a switch, theguide isn't joking though when it says the pin is a tight fit. Didn't think it was ever going to go in
Big thanks to Steve at for sorting all the parts. Didn't give him any part numbers and he sorted it all out, something my local Vauxhall parts department would never be able or willing to do!