[x67934]

I have an Eclipse Nav Unit the AVN 5435. When I turn on my headlights or parking lights the display goes to night mode. I can manually override this, but it would be idle if i could get the dislpay to change with the headlights, but not the parking lights because i use my parking lights during the day.

 

[Muzikman]

It probably runs off the same circuit as the dash dim (just like a normal radio). You might be able to fake it out if you know which pin in the harness is for dimming. Remove it and wire it in with a relay to the headlights.

But, you might also blow out the HU, so some research should be done. I would search around on car audio forums for a solution. I am sure this is not just an issue with the X, but all vehicles.