[Jukebox-list] Question about Wurly 2150

[PhilcoKid2 at cs.com]

If anyone out there has worked on a few 2150's, I have a question.  On the 
wiring harness coming down from the keyboard, right at the level of the playrak, 
mine has three wires (one red, one orange, and one brown) coming out of the 
harness with old style (looks very original) connectors with sleaving over it.  
 Anybody have any idea what they were intended for?  This is the second 2150 
I have had and I don't remember seeing this on the first one.  The harness 
still has the original friction tape on it and it has not been disturbed so I 
have to think this is original...

Thank you,
Donald