I have two OEM radios, a 93 CD and a 93 cassette, and both have broken volume switches. I dug into them only to find that the volume and tune switches are the same numbers. The light bulb appeared above my head and the idea of taking the tune switch out of the cassette unit and replacing the volume switch in the CD unit was born. Although the two switches that are on the same board are the same number, they are different from board to board. 9309MAL for the CD and 9305MAL for the cassette.
What are the chances that the switch swap will work?