I fitted something similar to
this many years ago, still going strong.
As well as fitting this you have to either:
1. connect to the back of the TV unit in the boot
or
2. purchase a purpose made lead for the 75. last time i looked the 75 was different to the BMW but now
apparently not Note Mono only.
Or an upgraded lead
here
Making your own lead is not difficult, I have the pin in numbers somewhere ( or they will be on here) and its simply a pair of leads (A/V) into the tv unit.