So the other day I locked my keys in the truck. My friend suggested that I try to use the back sliding window to get in. I never thought it would work because it looks like such a small hole. Sure enough he was right. I slid the back window open (even though it was closed to start off with) and slid right in. Im not that small either, 5'11" 180lbs. I so much room that even if I weighed 200, I could fit in. I was amazed at first but then I realized that if anyone wanted to break in...it was just as easy.