The buzzer makes me think it’s the key-in-ignition buzzer that’s triggered by the door switch. I hunted mine down and killed it in cold blood. I wanted the dome light (which I disable by unplugging when the doors are off), but not the buzzer. Light didn’t work without both plugged into the door switch.
Jeeps came from the factory wired for everything including AC. If the jeep was not optioned with something say intermittent wipers then you will have a dangling connector.
The first connector appears to be wiring harness for a hard top. The second picture looks like wires for the door jam switch to illuminate the courtesy lights under the dash or possibly the dome light in the hard top if so equipped.
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