In the never ending saga of my gps (see other thread) I think it’s time to have a crack at replacing the antenna. The replacement doco mentions A28/11 but that isn’t a part number and I keep finding many different part numbers.

A2049050036

20490501369051

A2048208175

A2048207575

im in a 2012 w204 c63 with command and used to have comfort telephony

anyone have ideas for the right part numbers?