Just how does the controller work? Does it just lower the passenger set more than the drivers? Or does it operate independently from the driver volume all together so you can go louder that the driver?
I tried all the controlers most suck there is a guy in Calif. makes his own and they work excellent sells them on E-bay.
most controllers other then his I found the passenger volume was down less then driver this was a falt of the controllers
if ya want a link for his I'll get it for you
remember you can have a front controler also some have done this
turn bike volume up and turn yourself down
or u buy a mp3 booster , that will pull up the volume of the passenger takes some soldering............integrate between helmet passenger and connector passenger............audio in from connector audio out to helmet...........then she can boogie:joke: