When trying to start may 2010 Dodge 3500 i turn my key and nothing no sound

If you have just replaced the batteries, I'd of course lean towards checking all cables and connections -- and even check fuses to see if one of the maxi-fuses in the under hood fuse box has blown due to some kind of power surge. Hands on diagnostic testing is required otherwise, unfortunately. www.repairpal.com/repair-shops