2001 GMC Sierra 1500 HD Q&A

2001 GMC Sierra 1500 HD Question: truck will not start and cant find the problem might be electrical issue notsure

truck has new starter , new battery , all fuses have been checked, but when trying to start vehicle nothing happens , lights on dash come on but engine doesnt do anything, what other things can i check for or what might be the issue -
Answer 1
Battery cables/connections. Ignition electrical switch. Neutral safety switch if auto. Clutch interlock switch if man. -