The MTC-PC60 Terminal Cover from JBL is designed to be used with the Control 65P/T, 67P/T, 67HC/T and the 60PS/T. It features two small holes for running cables through and a larger opening to accommodate the speaker's hanging bracket. For additional security, the cover can be glued to the back of the speaker using outdoor-capable sealant. The glue should be used around the outside rim of the panel cover, the opening for the hanging bracket, and the cable holes. If only one wire is needed, you can also use the glue to seal the second cable hole.