9 port switch on the right, 2 port switch on the left (see red circles). This is if you were looking up from the bottom of the dashboard view. The orange thing is the fan switch for reference.
I'm betting one of those push pins got brittle and broke. One or both of your port switches are fubar, unless it's been repaired and you're just now finding the spring washer. It's there to maintain tension on the push pin which tries to keep the two pieces of channel ports together tighter to eliminate vacuum leaks while allowing it to rotate.
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