I used this antenna mounted on my Golf 4 Bj. 2000 original VW antenna after me, are determined as not uncommon, the rubber seal of the antenna base and the lower part of the rubber antenna crumbles. The seal way, I have bought at VW and was with 4.11 cheaper than it is to get on the Internet (VW number 1J0 035 350). As radio I have a JVC KD-X 50 BT with any phantom power (duty otherwise nothing works). The antenna and the antenna was fully operational, despite crumbly rubber parts and I have the English-language channel BFBS taken as reference stations as it is in space Einbeck if skin then receive very weak. That I receive it is safe to the fairly good radio part and on the excellent original VW antenna with built-in amplifier. The more I was surprised that I can receive this channel with the ACV Kurzstabantenne. This somewhat worse but usually this transmitter is for me not important. But I receive all NDR, MDR, HR and WDR stations in mostly excellent and terrain conditions undisturbed quality and can only recommend the finger-sized antenna stub. In addition, the plastic-coated antenna makes by their unexpectedly high weight also have a very sophisticated look. My tip: Buy !!!