Hey guys, I installed 2 fronts on a 2019 Tacoma today. I was able to bottom load by popping off the trim piece up by the mirror, removing the small plastic push clip below that, and also removing the philips screw behind the door pull. This gave me plenty of room to pull the top of the panel back. I know the entire panel is easy to remove but honestly no need to. Very simple window to hand cut and install, whether you bottom load or two stage. Hope this helps!