You can find a Mazda repair manual at just about any auto parts store or you can check at your local library to see if there is one available for checkout.
haynes manual
In Haynes workshop manual.
Look in the owner's manual. I can't find the owner's manual. I know it's simple because I set it before but I can't remember what I did and I can't find my manual.
Email me for the Engine Schmatic with all Torque settings dwillman@canada.com
The fuse box diagram can be easily found in the owner's manual. You can also log into the manufacturer's website.
You can find a used Mazda Protege in Dallas Texas in a number of places. It is easiest to buy used cars online but many dealerships will also offer them.
http://www.installdr.com/Harnesses/Mazda-Wiring.pdf
try going on ebay!
no sensor only a thermostat
You can visit a local auto parts shop or a repair shop. First, read the manual to understand the specific horn pad for your car.
There's a label under your hood that has the diagram. If the hood has been replaced with an aftermarket one, there will be no sticker like that and you will have to buy a manual.
Images and galleries of the Mazda Protege 5 can be found on CarGurus, Modified Cars, MSN, Google, AOL Autos, The Car Connection, Autobytel, and Car Parts.