Re-Fitting Android head unit - no sound!!

Hi All, after some help!!

Im refitting my android head unit to my NC, fitting it exactly the same as last time (i think - feel pretty certain!) but I’m not getting any sound. 

Its a BOSE car but I have the correct Bose patch lead.

The only thing that has changed is that the head unit was taken out and put in a Honda Civic, but now I’m keeping my Mazda (see other tread) I’m putting it back in but no joy thus far!

im wondering if the connects2 module thing is goosed as I’m not getting any power from the key 2 cable after the module. Other thought is for some reason the Bose amp isn’t powering up. All works fine with the Standard radio.

If anyone has any ideas I’m very keen to hear them!!

Cheers

Stand down everyone, I’ve been silly and not connected the blue/white cables togeather for the amp. I have sound now! 

Reversing camera on the other hand looks like it’s about to get is own “it’s not working” thread!