Hmm, looking at that its just a plug and play mate..
The one's I have fitted are the ck3100, all had the same style bullet connectors for power just like un your diagram (note, you might need to swap red to orange of the unit does not power off when ignition is turned off) but still required a 12v connection (was a red lead)..
Can you take a pic of the wiring in the Parrot box?