We replaced our factory radio with a Sony, bought all the necessary wiring kits, and the install went smoothly. The new stereo works just fine.

BUT, now my dashboard lights and AC lights won't come on when I turn the headlights on. We checked the fuses, all working and the backup lights work as well. The clock and speedometer lights are working as long as the headlights are turned off, as soon as we turn them on those two go dim.

We unplugged the new stereo and hooked everything back up as it originally was, but still the lights won't come on.

Any suggestions?