Depends on the model and if there is the extra wire for a second horn. There are almost 20 different harnesses per year for all models. That is why you need your VIN # to replace one. Look on the harness where your existing horn is and see if there is an extra wire and connector that looks like one on horn present. Also check behind passenger headlight on same harness. If no extra wire then your harness is not equipped. I would not splice in another wire on existing since it comes from the TIPM, fuse box, from a relay controlled via the CanBus. Maybe you could trace the original back and find another leg on said relay to make it work. I wouldn't mess with the TIPM! There are six plus layers of circuit boards in the TIPM and the fusses, relays on top of $300 + if you wreck it and a chance at having dealer marry this module to the CanBus if it doesn't come to life on its own! I don't like my Sally horn either and was thinking of putting in a RoadRunner Beep Beep horn the Chinese make copy's of. Had one in my Hydrostream boat that attracted attention! But then it was yellow!
