After having my dieselpump and starter motor redone and battery replaced last year the car was an easy 1st time starter. Out of the blue yesterday afternoon, I turned the key and all I got was lights on and a click, nothing else. Tried again and the same . Removed the key , locked and unlocked the car and turned the key and she started like nothing was wrong. Drove home and parked and started looking around my new toy (link to thread to be placed here soon

). When I wanted to move the car its the same thing, just lights on and a click, nothing else. This is where I am stuck now.
All I did was, the day before I was measuring up to place my 2nd battery. I made template to check the size off the tray and did push against some off the wiring to see where I could fit it. After that she still started everytime with no problem.
Where do I start looking? Battery is fine, even tried another one. One thing I do notice is no click from the glowlpug relay on the passenger side.