I have not taken our 526 horn apart, but I did have our 326 horn apart and took some pics.
The bezel/plate (whatever you call it.) has 2 male notches 180 degrees apart.
The base, which is attached to the steering column, has 2 female notches in the middle of a groove.
You need to press the bezel to be able to slide the male notches in the groove to release the bezel.
For the 326 I am able to slide clockwise or counter-clockwise; I am not sure about the 526.
I hope this helps.
Bob
Attach file:
526 horn bezel1.jpg (2,028.90 KB) 20220706_162205.jpg (1,364.56 KB)
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