I was checking the site & was unable to find info on removing the rear quarter panels in a 66 Crown Coupe to access the window mechanisms. I have removed the rear seat bottom & the few screws I could see, but its still attached. Are these panels put on with clips, like those found on the door panels? I didn't want to pull on them & break them. Any help would be appreciated. Thank You, Loyal Stern '66 Crown Coupe