This is my co-workers JK. He found this hole while washing his Jeep. He never saw any bubbling on the outside, the hole was just there one day. It looks like two holes, about a quarter inch diameter, side-by-side. I asked him if he thinks someone drilled a couple of holes in the Jeep... he said "No." I was only kidding him, but that's what it looks like. I told him I'd ask about it here on the Forum. Check out the pics, and let me know what you all think could've caused this, is this a common thing on JKs? I did an internet search, I didn't see anything else like this. Thanks in advance!