LED install on Rev 10's

I am trying to install the wetsounds leds in a set of rev 10's. instructions say to remove 4 screws for grill, then 4 screws that hold the speaker, and then remove speaker. I did all that and I cannot get the speaker to come out. I called tech support and they said to turn speaker upside down and hit the sides with a rubber mallet and it should fall out. I did that and nothing even budged. Has anybody done this install, if so how did you get the speaker out????