essentially i want my steering wheel to go from this
to this

Firstly my current steering wheel has no audio control, I've read on various websites on how to rewire them to fit mac head units, but I'm using an after-market head unit.
Secondly I'm going from a preface non-momo to a post-face gtb momo wheel (i believe) will this fit.
Thirdly presuming the silver plates on the steering wheel are audio control and cruise control, what are the buttons on the bottom left and bottom right.
thanks for your time
