I found something strange tonight and was wondering if this is a known defect. We sat in the car to watch some fireworks while listening to the radio, but since we were still in the car the headlights stayed on. I changed them from Auto to Off on the 17" screen and also turned off the dome lights. But when the rear dome light was manually turned on, the headlights turned on even though they were turned off on the 17" screen. Has anyone else experienced this or has anyone been able to replicate this? Is this working as designed or a defect?