Might sound stupid, but I have seen the ground wire to the solenoid bolted onto a threaded part of the solenoid that isn't even an electrical junction. You will not even get a "click" if this happens, even if the dash lights and such come on...
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car