A:AnswerI don't believe any camera actually provides these lines. Those are done via your head unit or monitor you use, however to answer your question, no this camera does not provide any sort of backup guidance lines.
A:AnswerIf your jeep has the spare tire mounted on the rear of the vehicle this may not work. But they do make special camera brackets that can be mounted on the spare if it is in the back.
A:AnswerIt should work with any vehicle, as long as you have a monitor. Your radio or head unit will need a video input, or you can have a stand alone monitor.
A:AnswerNo sure about the compatibility but there is a lot of versatility in the camera mounting. I had it mounted to an H3 that had a spare tire on the tail gate and a tow hitch. Had to mount it a little off center, but it's not very much of a problem. I would check with Geek squad for compatibility.