Speaker mount adaptor plate
FIG. 1 is a front perspective view of a speaker mount adapter plate; 
     FIG. 2 is a rear perspective view thereof; 
     FIG. 3 is a top plan view thereof; 
     FIG. 4 is a bottom plan view thereof; 
     FIG. 5 is a side elevational view thereof; and 
     FIG. 6 is an end elevational view thereof.