READ ME FIRST! Installation Instructions
LEDT-311C, CB, CR, CS
07-Up Suburban / Tahoe LED Tail Light
AMENDMENT(FOR VEHICLE WITH 3157 WEDGE STYLE BULB) 
1.
2.
3.
Cut green wire from LED tail light at base of plug. Line up green wire with enclosed adapter harness's blue wire quick connector . Crimp down until it snaps securely closed
4.
5.
6
Repeat step 1 - 3 for the red wire to red wire quick connector. Cut both black wire from LED tail light at base of plug.  Connect ONE black wire to black wire quick connector.
7
8
Cut off other black wire at  insulation.
Cut off here
** Repeat same steps for all 4 plugs. **
Install NEW LED tail light to vehicle.(black wire to black wire) 
Done