Pic 1 - Im sure this for aircon, depending on what type of compressor was installed
Pic 3 - These are for airconditioning when installed, some suby's have the wiring looms installed at the factory even know aircon wasn't fitted. These plugs connect to the relays and the idleup vacume solenoid.
Pic 4- Again, aircon connectors, one for the compressor clutch and other for Pulse coil