If you have a Haynes manual for your 95 (OBD-I), then you most certainly have the instructions for using a paper clip to read codes. Don't waste your money on a reader, from what I know for OBD-I cars, it is just an overpriced paperclip. You can read any code without one (for non-OBD-II cars).
Oh, and FWIW, I thought the OBD-I Connector was under the hood? I know the OBD-II connectors are in the driver's compartment.
