Originally Posted by snoozee
maybe its a mass produced part where sometimes all 3 pins are used in other implementations.
i just found out that the PCB for the master windows switch pack for driver side is the same for folding and non-folding are exactly the same. just that the non-folding one is missing a button with a different trim piece.
yeah, that's pretty typical. I'd have expected in the case of the mic that the shielding would be attached internally to a metal can over the electronics, but that seems not to be the case (I tore down the mic out of curiosity).