How do you make the radio lights come on the stereo of a 1999 mercury villager estate?

The radio lights are supposed to come on when you turn on your headlights and adjust with the rest of your dashboard lights. I had this problem when I purchased my 1995 Mercury Villager back in 1997 with a mere 33k miles on the odometer. I believe the mechanic replaced the display panel under warranty. I have not had a problem since. I will look for that work authorization and get back to you if it was something different. I am not sure If your problem is the same but it is worth exploring replacing the display panel. Good Luck