Well, here they are! I should have done this a long time ago. Those are 1" spacers with 'shallow' mount (1 3/4" deep) JVC CS-V628 speakers. The speakers aren't going to win any awards, but they're 1000x better then the stock 4"ers. Didn't bother taking any pics of the install. You'll have to mark holes to drill for the spacers. Screw the spacer in, and then just screw the speaker into the spacer. I found (and I think I read others) could only line the speaker up to use 3 screws. It's in a triangle pattern though and it's in there rock solid, so I'm not worried. Highly recommend doing this.