Can anyone help me with some advice on how to remove the sunroof from a series 2 rs turbo please? The haynes manual in no way relates to what is fitted to the car.

Tried to remove the glass first and I can only get to 4 of the 6 bolts holding it to the frame. I've wound the glass back into the roof and removed all the bolts holding the frame to the car. The frame still won't budge. Any suggestions? Thanks.