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- 2017 CX3 Touring AWD
I tried to replace the horn today but failed. I wasn't able to remove the front bumper so I reached in from the grill slats and top trim. After getting the stock horn out, I realized that I need a few more components to install the Hella Horns. After putting the stock horn back, it wouldn't sound any more. It was very low before, now it's mute.
Even the alarm won't sound when I lock the car.
There was a lot of sand and small debris inside the snail. It took a lot of shaking to get everything out.
The stock horn looks exactly like this one, with only one spade (?) on the back and connected with only one wire. (All other horns come with two spades on the back.) There wasn't anything connected to the screw on the back. There is a thin wire that looks like a ground connection that is connected to the top of the mounting bracket which the horn is attached to. It doesn't appear that the screw makes contact with the bracket though.
One YouTuber was able to replace the stock horn without removing the bumper ("skinny arms for the win", and in his video, there wasn't another wire to watch out for. What did I miss?

There was a lot of sand and small debris inside the snail. It took a lot of shaking to get everything out.
The stock horn looks exactly like this one, with only one spade (?) on the back and connected with only one wire. (All other horns come with two spades on the back.) There wasn't anything connected to the screw on the back. There is a thin wire that looks like a ground connection that is connected to the top of the mounting bracket which the horn is attached to. It doesn't appear that the screw makes contact with the bracket though.
One YouTuber was able to replace the stock horn without removing the bumper ("skinny arms for the win", and in his video, there wasn't another wire to watch out for. What did I miss?