Where can you find a wiring diagram for a 1994 Subaru Legacy GLS wagon?

There are several good discussion forums sites that are likely to have portions of the Legacy wiring diagrams posted or which can provide answers to specific questions:
* LegacyGT.com
* bbs.legacycentral.org (covers 89-94 model years)
* ScoobyMods.com

Local Subaru dealers are pretty good about letting you take a look at Subaru's wiring diagrams. If you ask nicely, they'll probably even print a few of the pages for you.

The radio harness pin-out for 1992 and earlier models (1994 and earlier in North America) can be found here:
* http://www.surrealmirage.com/vrg3/bcstereo

The radio harness pin-out for 1993 and later models (1995 and later in North America) can be found here:
* http://ae64.com/Legacy-pinout.htm