Since there are not many users of this device here on hdforums, I thought I would give a brief review of it. There is really not a lot to say about it. The install was probably the easiest thing I have installed on my bike. It works flawlessly as it should. No need to program anything, it comes out of the box ready to use. Just plug it into the bikes main harness, there are a few open ended wires that get spliced to the corresponding colored wires coming from the new HU, and one 3.5mm cable that plugs to the back of the HU, and done. I used the Sony MEX-M70BT unit, but different brands have a very simple but different step that takes place of the 3.5mm jack and is detailed in the provided instructions. I am very pleased with this product and highly recommend it to those looking to save a few bucks as it is a much cheaper alternative to the Biketronics or Hawgwired units.
I asked a few months back on here if anyone had used one of these. I got no response so I went with the BikeTronics unit. Good to know the Scosche unit works for half the price.
I couldn't get the volume + to work on handle bar control. I bought it and the Sony head unit used, previous owner had no issues. Called manufacture, they walked me through a short process of unplugging it and getting it plugged back it. Has worked great since then.