or don't bother with it at all.. I never do unless I am going for a long drive..
personally I think it is pointless to have to get out of my car to put the damn thing on if I have a power top.. WTH is the point of a power top if I still have to get out to assemble a cover?
bad design.. I stopped using it after a week or so..
"A world 100% full of Prius drivers is still 100% addicted to oil. " ~ E. Musk