That's the bracket I have now. The old stock speaker had 4 tabs coming off it's metal frame and those screwed into 4 spots on the plastic mount. You can see one immediately left and down from the top hexbolt. The problem is that my cdt ef-61's don't have those tabs. So I looked around online for brackets I could buy and most were $20+ (w/out shipping) and I had no way to be sure they'd fit. Upon calling a few local car audio shops they said they just custom make theirs during the install process. So I figured I could do the same.
My plan is to take a piece of particle board, pencil in some guides using the screw holes on the new speaker then use a compass to circle it. Then expand out the necessary amount and mark off the outer ring. What I'm wondering is how hard this will be for someone with very limited skilsaw abilities and whether it will even work. Also any other ideas/tips/etc would be greatly appreciated.
For reference the car is a 1997 toyota camry and I'm putting in cdt ef-61's. Both the new and old components are 6 1/2's.