I've have several retro fits done on my 3.0 tdi quattro cab by Nigel the latest being folding mirrors. His attention to detail and knowledge of all systems Audi is second only to his love of a mug of tea. I can't recommend him highly enough. Work he's done for me over the last few months. Replaced burned out drivers heated seat element. Upgraded to Audi sds mk2 rns-e & AMI. Replaced a rear parking sensor. Fitted new Flat bottomed multi function steering wheel. Thanks also to N8 for the use of his premises & hospitality for the folding mirror job or rain would have stopped play! Anyone thinking of having retro work done NHN is your man.