I had a play today with the Alpine stereo that came with my GS. Seems quite an old unit CDE - 9881. There is a separate Parrot bluetooth thing which seems to work. On the receiver, here is a connector for an iPod (old style Apple), but when I connected up my iPhone 6 (with adaptor), I got an error message on the screen and on my phone. So I started thinking that this is an opportunity to spend more money and found this (see below) which seems to have Bluetooth, CarPlay & Nav. But before I go further, I just wondered in anyone else here had installed anything like this to a GS and whether it =would fit and flip open. TIA.