Using a metal spudger, insert it into one of the corners or sides of the units faceplate and lightly pry open.

While pried, insert a plastic opening tool and slide along the edges of the unit.

Repeat the last step on each side of the unit's faceplate, until the faceplate is off.

The first time you attempt to take the faceplate off of the speaker, it will be difficult because there is adhesive holding it to the unit. After this time, disassembly and reassembly should be easier.