i have a 99 contour se. to make a long story short, i had a new system put in and the wires were spliced leaving me somehow without lights just for the speedometer and dash. the guys where i had it installed took forever and basically said they didn't know how to make the dash lights work. i know which wire where the headunit is at is used for illumination of the dash (the white and green one). i spliced it in to the ignition wire, (red one in my car) just so i could have some dash lights for now. the dash lights now work but are on whenever the car is on and don't work with the light switch that controls the headlights like they should. i know all the fuses and everything are fine so does anyone know how this should work or how to fix this mess????

THANKS