Ur-q Diff lock question

[Sonar465@aol.com]

Studip ? here.  Are the diff locks on a '84 Ur-q phnumatic or electric.  The
reason I am asking is it seems that putting the new stereo in the Ur-q I
seemed to have done something to the center diff lock.  Last night we got a
bit of icy snow here on Long Island and I wanted to lock the center diff.
Pulled the knob out to lock the center diff and no light, and I don't think it
locked.  Now I know they where working last week but not this week and the
only thing I have done is put in the new stereo.  It is a little chilly out
right now to go looking but hopefully this weekend.  

Cheers,
Jim