Guess I need help. I ordered a turn signal from Chevy Duty and can't seem to get it working. Been on it two days now and am getting more confused all the time. What is happening is that when I get the brake lights to work and also the turn signals, then when I turn on the park lights, the brake lights do not work. I believe I may have to rewire the tail lights all over since whoever had the truck before me used multi colored wires going to one location and kind of hard to trace. tail lights have two bulbs in each. Would it be best to use one bulb in each taillight and also not pigtail from the left to the right. Would this make it easier to wire. The signal switch has 7 wires. Reason I mention to eliminate pigtail and rewire is that when I fix one problem, it messes up the other. (Example: brake lights work, after turn signals wired, then tail lights don't work. etc.) If brake lights are flashing and you turn on the park lights, then the brakes lights do not work anymore. I'm confused. :confused: