Join Date: Jul 2018
Location: Farmington, New Mexico
Way back when I owned a 1999 Valkyrie Interstate, the beautiful black and red model, I had the same issue with the wired intercom system on it. I installed electrical filters to suppress the noise but they had to be grounded to the motorcycle to really work well. Probably your best solution is to get a pair of Cardo Packtalk intercoms which don't have any noise. You can even talk to the wife, if she keeps her helmet on, while she is in the store getting a cup of coffee while you fill up the bike. With wireless communication getting on and off the bike is easier also.