The quadlock adapter works great, and the phantom power supply for the antenna is also fine. The radio reception is not quite as good as the original radio, but he is still in good area. I can not judge whether this is due to this antenna adapter or about the new radio, however. Also does not bother me particularly.
As previous speakers have already said, to embed some understanding is necessary, what you been up to since. This is a -universeller- adapter, but the assignment of the quadlock sockets varies with many cars (My research on some auto forums on the Internet have shown that even the occupation of the same models sometimes differ. For example, several owners have been given a Polo 9N3 various assignments there. For some models, an ignition positive, others not, etc ...). I had during installation with a Spannugsmessgerät only seek the ignition positive on the car jack, and then the adapter plug swap the cable. To this end, the supplied extra cables were helpful. One should also take a look at the instruction of the new radios definitely, because there are also information about the pin assignments.
If you have no idea of swapping a car radio, this adapter should not install itself one. For reasonably Expert, this adapter is fine.
