Single Gang Stainle Steel Decora Cover Plate
28-6355 - Single Gang Old Work Low Voltage Mounting Bracket
Ideal for any home theater or security system installation, these brackets accept any single or dual gang size wall plate. May be used for any Class 2 low voltage wiring application that does not require an electrical box. #28-6355 and #28-6356 have speed clip...
I have dealt with MCM Electronics a number of times and have been more than satisfied.