Unknown cable on A500

[Crisisdog]

It looks like the ground cable on the keyboard.  It usually attaches to the floppy drive with a screw, in the hole that you can also see in the picture.

[Crisisdog]

Sorry, double post, but I'll add that the screw also supports the floppy drive by also attaching in on that plastic riser too.

[Crisisdog]

It should be grounded, but it will work without it.  Just like an electrical appliance will work if you break off the third grounding pin and stick the cord in a two-plug socket.  You're defeating the possible safety purpose for it being there, but it still works.

 :-D