2003 saturn ion 2.2 changed starter and alternator and ha...

Also checked fuses and relays

Welcome to JustAnswer Mechanical Support! I amCustomerand I will be Investigating and Supporting your question today. I understand it can be really frustrating when your auto is not working an expected but don't worry as I am here to help! I may need further information, however, if required I will let you know! Sorry to hear your having issues with your vehicle I will try to assist you. Looking at the information you have provided It is possible a faulty ignition switch or a bad wiring to the starter motor or a bad connection at the terminals on the starter motor you need to check first if your getting a main supply fixed 12 volt on the main starter motor terminal and then a 12 volt supply on the solenoid terminal on the starter motor when cranking this will indicate if the wiring is correct to the starter motor and trace the wiring back to the ignition switch.