[emanmor345]

Ok so I went with a car systems adapter and it does send a RAD_ON signal for the diversity antenna, I was not happy with the FM reception/quality, the HD signal frequently went in and out, and the audio had static, so I decided to mod my e90 diversity antenna to pass through the aerial antennas from the windshield, youre basically making a Y cable.

my e90 diversity functions for FM1/AM, and remote controls. Your vehicle may be equipped differently but this is an excellent visual of what is going on.

Open the diversity and remove the capacitors that complete the circuit for FM1 and AM, then solder wire to the pins, FM2 is untouched in my case so I soldered wire to the pin. There will be a total of 3 wires from the amp FM1,FM2, and AM. These 3 are being disconnected and passed through to the F30 AMP, leaving the remote control aerial attached to keep that function. If your remote stops working that means you made a wrong connection.

Reference NEWTIS https://www.newtis.info/tisv2/a/en/e...ystems/1yoevwp

https://www.newtis.info/tisv2/a/en/f...ion/1VnYo5WZZH