To take the off the bracket roof, you pull down the ceiling carpet and use a huge wide screwdriver to unscrew the 6 elevator bolts. If they are stuck, you can take off the 8 Philips head screws from the two ends of the bracket and slide the glass out. The solar panel wire has two leads that clip onto the back.
I couldn't get the glass to slide out so I removed only one of the brackets and the phillips head screws, got the panel out and threw it away. Put back the one bracket. I assume you want to save the panel, so Tom's answer is much better.