Hello, I’ve been having bad FM Emfpang for a long time. I’ve had an antenna amplifier for a long time, I know the V40 has a built-in, which I want to hang between radio and antenna cable in between – therefore hope for a good radio reception, should my original antenna amplifier be at best defective – to my knowledge, however, what the emfang has not been really good since the beginning (new vehicle) – the local one is OK – the others are however too weak in the signal, so that the sound comes clean over. Now to my actual question: can someone tell me what exactly the cables of the external amplifier are connected to? The red cable comes to the ignition plus, clear. Only what is the wire and where does it have to be connected to? Or is it enough to put the antenna cable in between and clamp the red wire to the ignition plus?