although the sony mp5's are old they're very nice processors and I'm still using mine. I've been to the sony website but there's little support for such an old product. I want to make my own remote cable for it and I only need one button/function - which is to switch the 'bypass' on and off. The remote controller connection is a mini multipin din socket. does anyone know how I make this remote this? Does the remote have to be a logic/chip based unit or would a simple switching mechanism on particular pin work? Thanks for any help.