I have a 2009.5 G8 GT where you have to hold the sunroof switch up for the roof to move. I did not like having to hold the switch up and have developed a module, that taps into the existing wires to prevent this. It has the following features:
1) push & release button when car is on to move roof to new position
2) switchable on/off auto-close feature. When car is shut off, roof will move to closed position automatically.
The youtube video will show the operation of the module. Please PM or email me (Kris.Buckert@gmail.com) if you are interested and I will respond with initial pricing. It is significantly cheaper than a 2009.1 sunroof module and also integrates the auto-close feature.
The module requires tapping into the existing wires in the roof, no significant modification! It also will fit above the headliner and will not be visible as is shown in the video. If an external switch is desired, that can be accomidated for. I mounted a switch in the panel for the switch so that I can turn on/off the auto-close feature easily.
Thanks
Kris