Engine will not crank over?

Can't find any other fuses

Theft light is off have power at starter relay when you turn key to start possion

Engine Mechanical problem
2003 Dodge Ram 6 cyl Two Wheel Drive Automatic 85,000 miles

My truck has been having trouble staring the last few weeks. Sometimes I turned the key and nothing. The guages and lights all turn on and the battery is charged. After a few attempts, it would finally crank over. Yesterday, it did the same thing but in the middle of cranking is stopped and now won't crank at all. I replaced the starter selonoid relay but that didn't help. The battery is still charged. Any ideas on where to check next?

Using a voltmeter I found that there wasn't power getting to the relay when the key was in the crank position. Does this mean that the ignition is bad or is there another fuse/relay that could cause this?

Edit: After a few more attempts to trouble shoot the problem, I heard a clicking under the hood when turning the key to the crank position. I put the starter relay back in and it fired right up. I'm worried that it will stop cranking again as randomly as it started. Any ideas?

It doesn't click swapped relay still nothing I can prove transmission relay and it does the same as green wire on alternator truck cranks up

Terminal 30 had 12V but Terminal 87 did not when the key was in the crank position. Fuse 14 and 20 are both good. The truck started when I jumpered 30 and 87. After that I rechecked terminal 87 and when turned the key I heard the clicking under the hood. That's when I replaced the relay and started it right up. It hasn't given me any problems since but I don't know how long that will last. I looked at a circuit diagram and think the ignition switch may be going out but I'm not sure.

I was driving my truck and at times my lights would dim the volt gauge would drop and certain dash lights would flicker. Now the starter will not turn or even attempt.

I have power coming from my ignition switch when I turn ignition to crank position. Ive replaced starter relay. Checked all fuses. No power at the yellow wire on starter solenoid. When I remove the relay and jump wires to make starter crank it still doesn't start. Am I having PCM issues. I just had a new motor installed less than 500 miles ago.

I've checked all my fuses. I don't have a security system. Battery is brand new. There is no power going to the solenoid wire can my PCM be bad. Changed relay also

Why would certain dash lights dim while driving and headlights dim