ive got my highline working and fitted this morning at the dealers. its working fine, although they were worried about it not working.
when i initially went to the dealers, they didnt have a clue which highline part number to use. they just give you the "it wont work" story.
so basically, what i did, was go onto volkswagen.co.uk go on there used car locator. then i looked for a car very similar to mine. 3 door TDI mk5 GT sport cruise, steering wheel buttons. Then i looked for ones with highline, then got the numberplate of that car with highline.
With that, phone the dealers, and they will be able to get the part number of the clocks used in that car with etka. Hopefully they will give you the part number, then you can order it.
mine was on back order unfortunately, but i waited and it came in last week. they told me that they cant garuntee it would fit, and if it didnt id still have to pay for the clock! great!
it was £226 + vat + £100 surcharge. + £82.50 fitting. so about £450. eeak. but its worth it, it looks great! especially with my phonebook etc on there! ;)