If you are installing the Hard Disk based comand in an older car you need to adapt the FM antenna from the black fakra to the white (dual) fakra connector.

This gives FM antenna only.

If your car has a black and a mustard antenna fakra then you can purchase two of these and combine them to create the twin converter AND replace the 2nd antenna amplifiier in the car.

An alternative is to use our "Y-type" adapter that will connect both FM/AM inputs to the main antenna on the car.