Hi,
I have bought a Pioneer Ca9pa which is like what you have. It's from a Mazda Atenza. I have attached an image of the wiring plug I have for it. It works, however I can't use it fully as it says due to driving. Even though I'm not driving. Which means it has a parking brake wire. I'm in need of help. Please. Also in New Zealand.
I'm thinking there may be a wire missing as I have grounded the second black and brown wire but nothing.