I just opened up the IPDM to check the wires.
Both blue and orange wires from the Philips control unit go to the IPDM, which is mounted on the driver's side wheel well.
To open the IPDM, pop all 4 tabs carefull so you can lift the 'cover' (everything is connected to that cover, so it's thick, heavy and you will feel some resistance) about an inch or so. Once you did that, you should be able to twist it 90" counter clock wise, which then should let you lift the cover 90" in the other direction (towards the driver side) so you can access the wires.
I had to cut 2 notches (pretty deep) so both wires would fit with the cover closed.
Keep in mind that the vehicle is pretty active the first few minutes after shutting down power (you can hear the hum), so personally, I would wait at least for that before proceeding (in theory, you are supposed to disconnect all power, etc.).
Now, the wires I'm talking about go to that large plug to the left of that large green relay on the bottom, as seen in the pic below. Make sure you pay attention to that, as the same colors are also used on other plugs in that IPDM.
- Orange Philips wire is connected to the blue IPDM wire
- Blue Philips wire is connected to the red IPDM wire
According to the service manual, the red wire (pretty sure it's #57) provides battery voltage when power switch is ON. The orange (#51) goes to the LH headlamp.