The internal multi-protocol module was bad in my RM TS16s. This new module works well. It was easy to install. Just remove the back of the radio and remove three screws from the original module. The antenna is snapped on and then glued for added security. To remove the glue, I used a hair dryer to soften the glue and carefully pulled it loose as to not damage the tiny antenna wire connector. A dab of Foam Tac was applied antenna connector once snapped back onto the new module.