I recently received my Votex bodykit from ECS tuning YAY!
And: A finally a replacement FUBA
Volkswagen Golf IV 1.8T > Exterior > Antennas > ES#251689 Stubby Whip Antenna - VT1A0021
It's a temporary solution as I have to replace the entire base sometime when the weather warms up. Exploring my options and might get a Touareg oem sharkfin or something else.