Yes, I came across this when I wired up the 2010 for driving lights
I am not sure how the PIAA wiring harness is connected. I assume it has a signal wire from the positive side of the high beam lights and a signal wire to earth?
When I did my driving lights, I made up my own wiring harness. I had heavy duty wires connected to the battery terminals which went to the lights. The heavy duty positive wire was connected via a relay. I used a quick splice connectors to connect a signal wire from the positive wire on the high beam to the relay switch and also a quick splice connectors to connect a signal wire from the negative wire on the high beam. In this way the driving lights came on with the high beams.
A variation is to run one of the signal wires from the high beam into the cabin (and out again to the relay) via a switch on the drivers console to turn the driving lights on and off as well.
An alternate variation is to add a second relay in series to the first. Connect signal wires with quick splice connectors to the positive and negative wires of the fog lights. That way the fog light switch controls the driving lights and you do not need an extra switch in the cabin. If you have the fogs and the high beams on, the the driving lights will be on as well. If the fogs are off, the driving lights are off. If the high beams are off, the driving lights are off. I had both relays mounted on a metal plate on the 2010. The plate was mounted to the chassis by a vacant 6mm screw hole.
I am not sure how the PIAA wiring harness is connected. I assume it has a signal wire from the positive side of the high beam lights and a signal wire to earth?
When I did my driving lights, I made up my own wiring harness. I had heavy duty wires connected to the battery terminals which went to the lights. The heavy duty positive wire was connected via a relay. I used a quick splice connectors to connect a signal wire from the positive wire on the high beam to the relay switch and also a quick splice connectors to connect a signal wire from the negative wire on the high beam. In this way the driving lights came on with the high beams.
A variation is to run one of the signal wires from the high beam into the cabin (and out again to the relay) via a switch on the drivers console to turn the driving lights on and off as well.
An alternate variation is to add a second relay in series to the first. Connect signal wires with quick splice connectors to the positive and negative wires of the fog lights. That way the fog light switch controls the driving lights and you do not need an extra switch in the cabin. If you have the fogs and the high beams on, the the driving lights will be on as well. If the fogs are off, the driving lights are off. If the high beams are off, the driving lights are off. I had both relays mounted on a metal plate on the 2010. The plate was mounted to the chassis by a vacant 6mm screw hole.
