Satellite radio. Wireless earpieces or speakers built into the helmet like a Sena or Cardio system. I know, not what you wanted to hear. But you asked.
Correct. It makes no noises, other than the audio it receives from your audio source.Mine is a double boox, I'll have to see if I have room for the Rockford Fosgate TM400X2AD Amp. I know I have some RCA jacks plus wiring to deal with. My assumption is no audible on start with the Fasgate, is that right?
And you can roll up alongside a bike friend at a stop sign or red light and even with idling engines, carry on a conversation w/o having to scream or read lips.I am mostly in agreement with PaXman11. Typical road noise at 60+ mph is over 100 dB. This is easily high enough that OSHA would require hearing protection if you were at work and certainly high enough for prolonged exposure to cause long-term hearing loss. I use a SENA system blue-toothed to my phone and GPS unit coupled with in-the-ear-canal type sound deadening ear buds. These block out outside sounds. I can hear my music, phone calls, and GPS directions quite easily even at 90 mph on the interstate. I have taken business phone calls using this setup while cruising down the interstate, was able to hear the other person quite well, and the other person could not even tell I was on a bike. Best of all, my hearing is not being damaged. I am a fan of bike mounted stereos ONLY for around-town use at less than ~45 mph.