Apologies if this is the wrong group, or not allowed.
A large time consuming hobby of mine involves sitting on a motorcycle for several hundred miles at a time. I recently switched from a large touring type machine (think Goldwing) to something a little smaller that does not have a built in AM/FM/CD/Tape/CB/FRS/Coffee Maker to something a little lighter, but really miss the background tunes playing through my helmet speakers.
There are many aftermarket systems available to add such capability to bikes that don't have them, but what I'm looking for doesn't seem to exist.
I've already canabalized a pair of Koss earphones and mounted them into my helmet, shortened the cable so that it just barely peaks out of the bottom of the helmet for days when I don't want tunes, and use a 3foot patch cable to an mp3 player on my hip on days that I do.
But that's not what I want to do. Even with the luxo-tourer, the cable from my helmet to the biks was annoying at a minimum. I'd like to go wireless. I'd like to permanently install an FM transmitter (like used to broadcast an Ipod to a car stereo) on the bike, and install a small FM receiver on/in the helmet. However, google has finally failed me in my search for something that already exists that I can use. I'm thinking a small 2x2 or 3x3 box that I can mount on the bottom/base of the helmet, with two 1/8" stereo jacks, one for my helmet, one for a passenger to plug in to (the passenger connection would be nice, but definately not necessary.) It would need to run at a minimum of 4 hours on a 9v or smaller battery, and be fairly resistant to typical motorcycle vibrations. Waterproof not needed, as long as I can unmount it in a hurry. Needs enough volume to be heard, about the same volume level as a standard MP3/Walkman type player would be fine, but louder the better as earplugs should be worn.
Anybody seen or previously built anything that would work? Anybody interested in building this? My experience in electronics invovles plugging in a soldering iron, and that's about it.
Thanks, Jeff