I was mistaken...mine was $34.95 2 weeks ago when I ordered it, but when I looked today, it is $37.99! Wassup widdat? I got free shipping 'cause I ordered some other stuff with it. Anyhow, here's the link:
http://www.amazon.com/Brightech-trade-DoublePlay-Transmitter-Technology/dp/B00UEGDDAY/ref=sr_1_33?ie=UTF8&qid=1435776730&sr=8-33&keywords=bluetooth+transmitter&refinements=p_72%3A2661618011
I'm at work so I can't do the schematic right now....I'll work on it tonight. I just used an old 3.5mm stereo cable I had in my junk drawer & cut off the male end for connecting the transmitter to the wiring harness, & plugged it in to my USB Jack in the glove box for power. I have a 2014 Street Glide Special, so I don't have a headset plug (& I didn't want to spend $70 for a harness I didn't need). The bonus with this unit is that it is powered from the bike & will pair with 2 headsets, so my passenger can listen, too.
I'll see if I can come up with a wiring diagram later...
T