Check your local library for any repair manuals they might have or be able to get in their network, and if that doesn't work you could look into a local parts store as they may have or be able to order you a aftermarket service book. The best guide to have is an actual factory service manual, and these can often be purchased on sites such as Ebay.
You can find the wiring diagram for a 1991 Suburban at various auto part stores. You can also check in the owner's manual.
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 google images
autozone.com has alot of helpful info
A person can find the diagram for the power window wiring in this cars maintenance manual. It can also be found in the repair manual to this car.
Most repair manuals have the wiring diagrams in them.
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.