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.
If you choose the colormatch option please leave the code in the note section when you check out.
All sales are final and there is a 1 year warranty on all parts.
The main pic with the small lines is out Colormatched gloss black option it is out biggest seller.
if you choose a colormatch option you will get the thin lines