[Tigers] Wiring question

[Jim]

Looking for any words of wisdom on a lighting issue I just started having.
The headlights, turn signals, dash and rear running lights are all working
fine.  Just recently the brake lights, license plate lights and front running
lights all quit working.  I'm hoping it's just a bulb in one of those housings
or loose ground, but before I start pulling things apart thought I'd see if
anyone has suggestions on where the problem might be.  I'm not certain the car
is wired as original as the previous owner installed a painless harness.
Until last week everything was working just fine.

Thanks in advance.