Simple speaker grill to stick on the front of your BSA backbox to make it look more like a Stern Spike 2 backbox. 
 

Includes a channel for addressable LEDs as well as a cut-out for wiring them. 
 

print two of these, one of them mirrored so you have a left and a right. Stick them on with double sided foam tape. Optionally drill holes for LEDs to pass through under the cut-outs and route strips through inner channels.