My Bike to Bike Integrated Audio System Solution.
It started not long after I started commuting. The song of the v-twin and wind just wasn't enough as I navigated through LA traffic. My first system was simple: Dollar store headphones that I inserted into my helmet plugged into my no skip cd player that was a leftover from when I owned my Jeep. That worked well enough until the need to talk to other riders arose while I planned a cross country trip. Most of the solutions back then cost multiple hundred dollars and weren't what I needed since I only figured I'd use it during the three week trip.