Hey guys:
I have a 2007 Audi A3 with a Concert radio:

I am trying to add an AUX input so I bought the GROM kit here:
AUDI 98-10 Auxiliary AUX-IN Android iPod Bluetooth Adapter
The problem is that I cannot plug in the adapter they provided (small white one in the pic below) in the back of the radio - so I assume I have the wrong adapter??

Can someone advise me on correcting this?

Thanks,
Michael
2007 Audi A3 2.0T FSI
2007 BMW 335XI
1985 Alfa Romeo GTV6