There is a sticker on the core support that has it.
Or, Haynes manual
One can find a wiring diagram for a Volvo 245 at Turbo Bricks. These can also be found at Volvo Club and at Volvo Tips.
most auto parts dealers have or can print out a routing diagram.
you can find it in a workshop manual
i need the diagram for 1991 Nissan stanza xe camshaft
Can I download a Teco airconditioning Manual
Here is diagram from 2carpros.com http://www.2carpros.com/car_repair_information/year/2001/make/volvo/model/v70/2001_volvo_v70_drive_belt_routing_diagram.htm
You can find the wiring diagram for a 1991 Suburban at various auto part stores. You can also check in the owner's manual.
You can find the 1991 Mazda 323 fuse box diagram at your local Mazda dealership. You can also find the fuse box diagram on the inside cover of the fuse box.
www.crutchfield.com
Is it not on the inside of the fuse-box cover?
You can find an alternator and air conditioning belt diagram for a 2003 Peugeot 307 1693 cc in the owner's manual. You can also check local auto stores.
You can find the radio wiring diagram for a 1991 Ford Bronco in the vehicle's owner's manual. You can also find it by contacting the radio manufacturer.