Hi sorry this has prob been asked many times. Thanks for any help in advance

 

I have fitted with assistance a towbar. I have finished the wiring apart from:

 

1.The rear lights left and right and the fog light. All others were straight forward. Testing with a voltage meter i cant find the correct wires.

 

2. I have 3 live wires from the modules in the boot to the rear of the fuse box, plan was to attach these to the blank fuse slots as per spares for towbar in manual? Where do i take the permenant live from to the other side of the fuses. I decided not to go from the battery as i removed the glove box and it looked like i had to take the fan etc out.

Forgot to say wiring to 13pin socket via 2 modules. I have also attached wire to reverse for the rear dash cam

This is what i could find. Grey/yellow grey/purple go to the two seprate lamps but not the main cluster?