nahhh, you got mk3 mirrors like mine... i'm talking about the mk4 version of the cab (from 98 onwards) where they changed the mirrors to suit the rest of the VW range at the time, i.e on the golf, passat, lupo etc etc... but as it's bascially the same bodyshell as a mk3 golf, i'm thinking that perhaps the baseplates and electrics are exactly the same as the standard mk3 mirrors, thus meaning an easy fit perhaps?!?
anyways, check this pic to see which mirrors i'm on about:

cheers
gosumo!