Any member successfully upgraded their GPS or complete head unit of a 2009 250SL, like to fit a Chinese android head, but want to retain steering wheel, phone and volume controls.

any recommendations, prefer plug and play but willing to have a go if needed, also how can you tell if car has fibre optics, and what parts needed.

Also have an Icar MB 2 if anyone in my area wants a diagnose or reset (south Kent).

Thanks in anticipation

Stan
2009 SL250 petrol.