Brakes light up in the front

Yes, push the wire harness up from the bottom of the steering column, and wiggle. Don't cut the connector off. Dweeb mechanics always do that. Use a little screwdriver to release each connector. Draw a wiring diagram first.

I agree w/ 273, and doubt your turn signal switch is the problem. It is a lot of fuss to replace it, and unlikely that will solve the problem. Sounds like cross-talk from shorted wires, if not in the bulb terminals themself. Have you tried it with the rear bulbs removed, to check 273's guess?