Pick up a Haynes repair manual for the vehicle. They have wiring schematics in them.
You can find a wiring diagram for a 93 Saturn in the vehicle's owner's manual. You can also check with local auto part stores.
Here's the one I used http://carstereohelp.net/wireharness_Delco3.htm
NOT AT ALL
The water pump on a 1996 Saturn sl2 is located in the engine compartment. It sits below the AC compressor.
under the hood
It does not have one.
Get Haynes Repair Manual for the Saturn S-series 1991 thru 2002 (Haynes series 87010) available at Advance Auto Parts and other auto parts stores. It has wiring diagrams in the back.
Check the relays and fuses.
1993 Saturn sl2
Yes it will.