Buddy has a 10 he just bought and the factory steal tab/ horn is run through the PS intercom. It is was too loud. I've pulled the manual for the intercom system and don't see anything for input volume adjustment. Any idea if I can lower the volume?
Don’t have an answer for you on your intercom volume issue. However, as an option I can say the stock setup with its own speaker vs routing through an intercom/audio panel is plenty loud to hear even with noise canceling headsets on if you want to revert to the original installation per the plans.