I just got my gauges in the mail. They are reverse euro gauges that glow blue or green. I am reluctant to install these from what I have heard, but I have a few questions. I heard that there is a way to do it without taking off the needles, but I'm not sure if that was just on a specific set of gauges. Anyone know about this? I'm also looking for any tips someone has on safely installing these gauges without breaking anything. Heres some pics. Also, where do you think I should mount the controller in the last pic. It has two screws on top of it.