The horn does not blow and when I replace the fuse it may blow once or twice but the fuse blows again.

It sounds like you have a ground wire trace the wire from the horn back in check to make sure the insulation around the wire is not rip or torn or touching metal also when you used the horn check the button you push to make sure the short is not there

you have a short circuit along the wiring... good luck trying to trace where that wire with worn out sheathing ~ usually at pinch points

Sounds like a short in that circuit; disconnect the horn and try again, if that does not blow the fuse, the horn needs attention, if it still blows the fuse, the motor for the rear glass is the problem.

Sounds like a short circuit make sure your using proper fuses and what not.

disconnect the horn or horns, operate the horn and see if the fuse still blows. if the fuse still blows then there is most likely a short in the wiring. relays rarely cause shorts. if the fuse doesnt blow with the horn disconnected, reconnect the horn and operate the horn again, if the fuse blows you have a shorted horn.

Yes if they shorted out something while working on it, it can blow fuses since the fans and horn both went out I would start with checking all the fuses related to these you also may have relays which can go out like fuses some will be under the dash and you might have more under the hood. start there if you find blown fuses and replace and they blow again then you have a loose wire or short.

Neutral safety switch may cause those symptoms

I would trace the wire from the horn and see if it was inadvertently damaged when the alternator was installed. If you have a voltmeter, you can remove the horn fuse and check to see if there is continuity between the horn (non hot side) of the fuse and the car body. This would indicate a short in the wire running from the fuse box to the horn. You can also look around the alternator mounting area to see if any wires are being pinched. Hope this helps. Good luck!

This sounds like the horn may have a short in it somewhere. Does the horn blow at all? Try this: Make sure you have a good fuse installed to this circuit again. Disconnect the horn and place a volt/ohm meter set to DC volts on the horn connections. If there is just 1 wire going to the horn, put that wire on the red wire of the meter. Put the black wire of the meter to a good ground, preferably the negative battery terminal. Now press the horn and see if there is a reading of around 12 Volts. If so, replace the horn. If not, and the fuse blows again, check the wiring for a fray/short to ground. When you're looking at the horn of course, make sure the positive lead isn't shorting to ground as well.

I hope this helps! Let me know if you need any more assistance! :)

-Jason

Very possibly the horn relay. This is located in the left junction block ( fuse panel) on the left side of dash. Open driver door and you will see a panel cover on the end of dash. On the cover it should list the position of the relay which I believe is on the right of fuse panel. If you try the horn and it sticks on again, try tapping the relay, if stops then that is the problem.