if you want it non tilt just leave the old sunroof in and fit a motor instead of the handle. i think the only things you will have to do is tap some holes to mount the motor on with and make a new panel to hide it with the light in and switch. actually you might have to find a motor that doesnt tilt the sunroof as well cos most of them do.

im gonna use an electric windows switch and put it on the middle mount on the centre console
