Okay, so here's my question.
I have a flip switch installed so that i can choose to turn on or off these aftermarket interior lights in my car, my only problem is i have no idea how to hook it up correctly.
The switch has three prongs
1.)Supply
2.)Accesory
3.)Earth Ground
How do i wire this, plus where would the positive and negatives wires of the lights run too?

Please someone help