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Ok, I checked the wiring and it is.
Heavy gauge wires
Red -> 12 volts (could be 30+ amps so if using a relay it needs to be a large one)
Brown -> Ground
Light gauge wires
Black -> 12 volts (most people connect this to the alternator energise wire)
Blue with white stripe -> Vehicle speed signal (connect to 12v for 100% pump output)
Brown with white stripe -> Might be diagnostic connection? (not required, leave unconnected)
The wires change colours after the first connector so double check them.
The colours i have listed are for the wires that go between the pump and the first connector.
Also the pump takes a several seconds to spin up. For a few seconds it makes no noise and then the noise ramps up to full volume in about 10 - 20 seconds.
Checked the noise level with the bonnet closed and it is still quite loud.
If i had an internal combustion engine running i probably wouldn't hear it but with the rest of the car making no sounds it seems quite loud.
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