I bought the Roadtech speakers from the stealer for $100 and just put them in my Shoie X-11. I am very very pleased with the results. If earphones hurt your ears from the pressure of the helmet against them this mod is the $h!t. I didn't think to take pictures till I was done, but it's pretty easy once you remove the padding from the helmet you'll see what you need to do. I cut into the styrofoam lining of the helmet about a 1/2" deep to fit the speakers in, I made the diameter of the cut out circle just a little small so the speakers had to be pressed in then reinstalled the padding. They sound great and even have a little bass to them, no more ear aches after an hour of helmet pressure on my ears. The X-11 is worth every single penny they are charging for it by the way, it vents good, it's quiet and it has excellent areodynamics, even when turning your head at high speed to look over your shoulder. the harley part number on the speakers is 76530-07.