I know what youre talking about. They were taped onto the speaker when i pulled them out of the box. I didn't use mine. I don't think they are for vibration.
SVTJON87- What did you do with your crossovers?
When I put mine in I first let them sit in the bottom of the door. Bad idea once it began to rain. Instead I wrapped mine in buddle wrap and some electrical tape and zip-tied them through some small holes and the bulge where the door panel juts out a little bit.
Are you using dynamat for those too? The door panels on my pass side rattle hardcore on continuous low frequency bass hits.
EDIt- nvm the dynamat statement, I saw youre using it.