You can view the 1997 Mercury Cougar owners manual online at :
www . motorcraft service . com ( no spaces )
Click on Owner Guides
( the fuse section starts on page 171 , it has the diagrams and lists )
You can find a front door latch assembly diagram, for your 1996, Mercury Cougar from the manufacturer website. Many auto-parts websites will have the diagram.
find a chilton manual, they are cheap
You can get a vacuum diagram for a 1994 Mercury Cougar 4.6 liter in the Chilton's manual for that year and model. You can also find the diagram online at All Data DIY and at Engine Guy online.
http://www.cougarpartscatalog.com/1919mecovaac.html
there is a diagram sticker in the glove box for the fuses under the searing wheel
call the dealership they can print one out for you!
The Haynes Repair Manuals would have a diagram of the serpentine belt on a 94 Mercury Cougar XR7. You can find the manual at your local library, book store, or most auto parts stores.
You can find the 1997 Mercury Cougar low pressure port on top of the air conditioner compressor. The low pressure port will have a blue top.
You can find the wiring diagram for a relay position for a 1997 Mercury Sable in the owner's manual. You can also check local auto stores.
You can find this information from John Sherbit-MOTOR MANUAL/MOTORALLDATA Distributor
You can find this at you local public library...........
The "Related Question" below has a few links to free online sources of Ford and Mercury Owners Manuals.