Think the wires from the car are correct to the colours. I may have blue wire connectivity going on somewhere there.

Other things have moved on a little in terms of radio reception. With the empeg out and pushing down on the back of the sled or pushing up on the bottom of the Pioneer gave me much better results (although not as good as I would expect). Not sure if something was getting a bit squashed back there. Anyway, I've now put a bigger spacer between the 2 so see how things go.

Will try and take a look at the blue wiring situation.