UCI interface dilemma!
My GLK didnt come with the UCI interface and my dealer wanted $699 to install it
! I bought the kit off ebay and was told that I had all the right wires. But as you can see below...there is only one fiber optic connector going from the head unit into the UCI. 
There area also 2 connectors on the side of the UCI which i do not have cables for.

Here's the back of the head unit:

I think it goes into one of the white spots on the bottom left, but its only a guess, and i still feel as though i am missing something
.Any help would be greatly appreciated!



