Ok, now I am really confused. I am not the one who wired this truck so I am unsure what really went on. when I feed the left rear tail light turn signal with power from the turn signal switch, both the left and right turn signals flash. At the left turn signal bulb itself, there are three wires going to the two wires from the bulb. One wire feeds the less bright filament for the parking/ headlights. The other wire from the bulb (the brighter filament) is fed with two wires, one for the brake lights and one for the turn signal. Then I think the brake light wire from the left bulb is is then fed over to the right turn signal bulb. I am guessing this is what is causing both bulbs to flash at the same time. How should I wire this so both bulbs aren't flashing at the same time?
Thank you
