1992 Saturn SC 54,000 Twin CAM

Yellow wire= hot from ignition(run or acc position)
orange wire= hot at all times Chime fuse
brown wire= exterior light system
grey wire= interior light system
black wire = ground
coaxial cable= antena

Speakers
LR= Brown wire & yellow wire
RR= dark blue wire light blue wire
LF= tan wire grey wire
RF= light green wire dark green wire

Old saturns never die as long as they have oil. Have your daughter be sure to check it every other fillup as they have a tendency to use oil.

Good luck and let us know how it goes. :)