The antenna I bought because the original is stopped in the low double-parking Parking. The M5 thread fits on the Gulf 4, the antenna looks similar to the original of the automaker, acts of a processing perspective, a little less quality, is a bit more flexible. The reception is at me the same way as with the original antenna.
Update: After about six months, this antenna is now canceled and the double parking, this has persevered significant longer than the original, in the long run but unfortunately not.