Cranks but does not start. New spark plug

Cranks no start? I've checked everything else but still nuthin

Installed an aftermarket head unit and backup cam. Since the addition of the backup cam the speedometer, odometer and gear display are all not working. A/T circuit error code displayed. I've checked t… 

Replaced crank sensor and cam sensor still no fire

Now green key lights on on the dash and I can't get it to crank. Do I have to reprogram my key in order for it to start

When the transponder module failed I only had aftermarket keys unable to reset the keys or the transponder. And I took it to the dealership he said the transponder module had the wrong plug on it whic…