I have the same set, as DWVW said, stick a pick or a jeweller's scredriver in the mesh carefully, and pull it away.
The outer silver ring and infinity logo stay mounted to the speaker. As far as the crossovers go, I have been running mine mounted in the back of my Jeep by the amp, about 6 feet away from the mids and tweets. Probably not recommended to do it that way but [img]graemlins/dunno.gif[/img]