Help with headunit change MK1 Superb DX navi

Afternoon all, I've just bought a Superb 100 Edition which comes with the DX Navigation system as standard, I'd like to remove it and fit my Android Auto Pioneer head unit I had in my A3 but I'm a bit confused,

I have bought this kit to enable me to keep the steering controls but on removal of the head unit there is no brown multiplug as in this pic which is for the speakers, the top 3 are populated as it the bottom but nothing in the middle

And instead there is a multiplug which fits into this plug shown below, so I am a bit confused and would appreciate any help in getting my own head unit connected and up and running.

Ideas anybody?

Thanks in advance