Need help with taking molding off '10 camaro rear speakers!

Can somebody please tell me or send me a link via email on how to remove the plastic molding surrounding the rear speakers on a 2010 v6 chevy camaro? My rear windshield was recently shattered and I am unsure on how to remove the shards of glass jumping in the speakers. The dealership wants $100.00 to clean out all the glass and I dont feel like get screwed by them anymore than I already have. Any help would be greatly appreciated CAMARO LOVERS!!! Thanks! BLKELLIOTT34567@HOTMAIL.COM

See if you can take the speakers out through the bottom