Most repair manuals have the wiring diagrams in them.
A wiring diagram for a 1994 Ford Ranger can be found in the Chilton's manual for that vehicle. You can also find this wiring diagram at most auto parts stores.
There are various websites where you can find a wiring diagram for a Mitsubishi Triton 1993. You can also find the diagram in the vehicle's owner's manual.
You can find some of the wiring diagram at, commandocaralarms.com
Yes, there is a wiring diagram fro the stock stereo for the 1993 Lincoln Continental. This can be find in the maintenance manual.
You can find a radio wiring diagram for a 1993 GMC Sonoma in the vehicle's owner's manual. You can also find it at local auto parts stores.
try haynes.com
online
I have a 1993 softail wiring diagram. Probably a lot of similarities. Email me at dddono00@yahoo.com and I'll email it back to you.
go to books4cars.com
Local libray
You can find a 1993 Chevrolet Cavalier schematic diagram, for the wiring and cooling system, at most Chevrolet dealerships. You can also find the diagram at most auto-parts stores.
It should be in the owners manual.