chilton's
This diagram is under the hood. Look for it
What year and what engine?
you will find the fuse pics in the manual of the car
Autozone.com...click "repair info"
water leaking uper engin
try www.autozone.com
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.
You would need to get a buddy to post the diagram on a forum. Otherwise it can't be found for free.
If it is the factory radio, then the pin-outs diagram should be stamped into the metal on the radio it-self.
Get the Haynes/Chiltons manual. It should be there. Or go to the automotiveforums.com website.
this question is very simple. Buy a owner manual for your car.