I have a 2000 ram 4wheel drive auto that has recently started to not want to start all the time. turn the key nothing all accesories turn off as they should no click from starter good lights no dip when you try to start tried to start in neutral also no good when it happened before repeatedly turning key would work not this time. truck has done this before started doing it more often recently where do i begin. truck is at home so can check anything . thank you in advance for your help