Shop screwed up: 4KQ Wiring. NEED Help PLZ

[Quattro King]

I will make this short.  The 1984 4KQ was taken to a bay area list
recommended shop for some electrical work by my girlfriend.  She called me
and said that after picking up the car the sunroof and the horn didn't work
(the electrical work she had done was not related to either of these
systems.  for those of you who care they replaced a relay on her euros).
Thinking it was a bad fuse I told her what to check.  No dice.  Well I am
visiting her and can't figure it out either.  I have my multimeter and get
no power to either system.  Any ideas?  I am going to talk to the shop and
see if they will give some of the $$ back for the troubles but really don't
want to use them to try and fix it as I am somewhat concerned that they will
screw something else up.

Thanx, Shayne.