[njsteve]

Originally Posted by transam1972

I GOT THIS N.O,S,SPEAKER,COVER PLATE & BOX FROM YEAR 1...BACK IN THE DAY EHEN THEY SOLD GM PARTS THAT WERE ACTUALLY AFFORDABLE..ALL THIS TRAY TALK WANTS ME TO PUT IN THE CORRECT 72 STANDARD TRAY..BUT I KNOW I WILL MESS UP THE SPEAKER SIAMESE TWIN CUTS!!Attachment 358455

If you place the package tray on the rear deck, you can use a pencil and mark the underside of the tray through the four screw holes. That way have a locater for the speaker.
I will see if I can make a paper stencil and scan it in for you guys.