Hi ! sorry I have been getting quotes from different fitters, was told Westfalia detachable is no good for R-line model of the Tiguan not enough clearance, so got some quotes for the Witter detachable flange from 3 fitters and the difference in the quotes are £410, £525 and £645, all with dedicated vehicle electrics fitted. I have used the £645 fitter in the past, the lower quote is from the fitter used by my local VW dealer. Has anybody had such a difference in price for the same fitting.