this product is for the new gm style tow mirrors. you take you old one out and pop this one in, only thing you would have to do is tap into a ground, blinker and drl wire.
switchback is when your driving its white as drl and when you turn your blinker on it blinks amber.
We Will Contact you for colorcode once you order.
Sequential Leds is where the amber chases its self to the end. its a pretty bad ass feature.
all sales are final and there is a 1 year warranty on all parts.
if you have any questions shoot us a message at 901-848-1655
the smoked lenses are shown in the picture you can hardly tell they are smoked they are our biggest seller