Empire 598 tone arm cable

Where did you get the 5 pin connector? I looked for years and could never find one. If you have that, I would try contacting a few of the smaller boutique cable manufacturers and see if they'd oblige you. (Maybe www.moon-audio.com) There have occasionally been people advertising new ones on Ebay (for astronomical prices.)

Morrow audio

Radio Shack used to have the connector as they used to use the same setup on their car stereos many years ago. Don't know if they still have them.