"The driver's door and the trunk are not vacuum dependent"
I don't know what this means, but the driver's door, trunk and all other doors including gas filler all have 'vacuum' actuators. The front doors and trunk also have switches incorporated to trigger the pump. The trunk lock can also be turned to a position where its actuator won't unlock it. The pump itself is pressure/vacuum, depending on trigger polarity, with built-in flow/pressure switch, so there is only one pneumatic line to each actuator.