Bose + Instant Nav / Radio Nav (GPS from 2010) -> Quadlock to ISO

Hello, I want install a Sony 2DIN system on my car, and its impossible find some adaptor for steering wheel.

The Instant Nav / Radio Nav version have quadlock conector, but no body made adaptor for ISO.

Somebody have idea how I can install a 2DIN system and that BOSE system and steering wheel buttons works?.

Photo of my NAV:
http://www.forum.alfaholicy.org/imag...2018/03/16.jpg

I think that this NAV is the same like have Fiat Bravo, Alfa Mito and Lancia Delta, all uses quadlock conector, but nobody sell the adaptor :-(

You can not buy the adapter, you can only get diagrams and reprocess installations. The connection will not be a problem and it will also work if the Sony radio leans the signal can because it is the original radio that transmits information from the steering wheel, the display on the meter and from the audio amplifier. If the radio you want to mount does not support can, it is not worth reworking. If you have a changer, it will not work either ...