2004 GMC Envoy XUV/SLT; How to change third brake light
I need to replace my third brake light, and need directions on how to install it. It looks like I have to remove the inside panel on the tailgate, but the only way to do that is to fully lower the window, and drop the tailgate down. If I have to do that the window will block me from accessing the third brake light. Thanks in advance for any assistance.

