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This is my alarm horn, what is that small **** for on the back?
Ok, I have surmised that it is an adjustment ****, but what does it adjust? Tone, loudness? Thanks. I could not get the old one off the car due to rust so several years ago while a friend swapped out my mufflers, I had him tack this rebuilt one on and the other day after a drive, I noticed it hanging by it's wire. So I am going to try again to get the old rusted screw out and put this back in the correct way.
Last edited by kansas123; Aug 9, 2017 at 03:09 PM.
Reason: add information