1 Yes
2 See ebay
3 Easy, no just the back part and the vanity light and a pillar if you want to connect it up properly.
4 Nothing addition needed
5 Ebay or ebay.de
6 Yes, including me.Search on here, vrs carl did a guide.
7 Lots
I just fitted the sharkfin for looks. I get good sat reception with the in dash gps receiver and I left my beesting under the headlining and get perfect radio reception.
I have a mk5 one at the moment but I have a mk6 from Dave B ready to go on
That reminds me daveb1970 did have the cable you need that he wanted rid of, PM him.