Hi, I have a 1998 SL2 and my horn recently stopped working. It started making a squeaking noise instead of honking so I figured it was the horn itself, not the wiring or a fuse. So I went and got a new one at autozone, that physically looks very similar to the old one. My problem is the wiring is different. On the stock one there is a plug with three wires going into it. On the new one there are only two contacts for wires. I asked a neighbor about this and they were also confused about the third wire. Im no car expert and dont know much about wiring either but I thought this would be pretty simple. Can someone explain this to me or give me some advice? Thanks.

1998sl2 ...

What colour are the wires going into that connector ??

The horn you bought requires the use of an offboard relay whiceh would be located in the fuse box like older Saturs. Later model Saturns like yours have a horn with a built in relay. Thats the reason for the third wire.

Here is the wiring for the factory horn:

Cavity A**Orange**Horn Control
Cavity B**Black**Switch 12V+
Cavity C**Black**GroundEdited by: Low Saturn

Thank you that is helpful. Does this mean that I need to get a relay then?

You need to get the correct horn.