Ok, guys.  I know there is a bulb in there somewhere to let you see the lines aligned indicating the gear is safely down. I can't seem to find the bulb, and, resultant to that, don't know what bulb goes in there. I'd like to have the bulb in hand ready to swap out once I find out where it is!!! instructions would be much appreciated and pics would be even better.  Thanks in advance! This website is awesome!!!!!