A little while back i had to fiddle with my wm-7 headphones (crap output, replaced switches), since theres no documentation on how the remote itself works i thought id share my lil doodle for anyone who might need it -and if you have the same problem, i swapped the originals (d2f-01a) out with d2f-01f switches, though i figure most-any micro switch should be fine side note, G and G2 i believe are just the L and R speaker ground wires. impedance change used to detect which switch is pressed i assume anyways, figure someone at some point might find this useful. whether for fixing or making their own wm-7 remote