Bolt Sizes for Rear Speakers & Spoiler

[Prafeston]

EDIT: Found the rear speaker screw size. Still need some help with the Spoiler install.

I need help tracking down the proper bolt size for the rear speakers as well as the bolts for the OEM spoiler.

I have the factory plastic grommets that go in...it looks like maybe each grommet requires two holes to be drilled? I'm thinking about just doing the drdan way.

[Prafeston]

...anybody got some info on the stock spoiler bolt sizes? Or do you think I should just do it like DrDan..

http://www.fordfestiva.com/forums/showthread.php?t=36845&highlight=Spoiler+install