My horns don't sound good, can they be adjusted. Also the thin metal pieces between bracket and horn are weak and a few broken. can you buy new pieces. Thanks
If the mounting structures are deteriorating, the ground path is also deteriorating. You may have to find some old horns at a flea market or flea-pay and swap the mounts out. They could be repaired but you will have to drill rivets & fabricate metal pieces to do the job.