HD Folks; Here is my question. What is the best intercom to use on my Road King Classic? My wife and I are headed to Sturgis this August and I would like to purchase a system before then. Price isn't a consideration. Requirements? Sidetone would be nice, but not a requirement. VOX (I have a windsheild, but I don't have quiet mufflers, so I don't want a cheap system that buzzes all the time.) self contained, I.E. nothing installed on bike. use for half and 3/4 helmets fair battery life (CA to SD is a long way) I am looking at the Route 66 by Firefox. Is there a better choice? Thanks in advance.