Alright guys, this is a bit of a techie questions. I have my 9500i hardwired into my car by means oa standard phone cord from walmart. I have been considering buying this hard wire kit with and led and remote switch included because I want to install a remote LED and mute button in my car. My question is, does anybody know how to add a mute button and LED to a standard phone cord so I can save myself the money? I already have a button and LED ready to go. If anyone knows, let me know!