I replaced the starter relay & it still wont start no turn over only clicks

Anthony; First wear safety glasses. Insure battery is fully charged and providing proper voltage. Check the battery cables [clean and secure if needed]. A loose connection at the battery or starter can cause this problem. Also check ground connections at engine and body/chassis. A bad starter or stater solenoid can cause this problem. Have an assistant work the key while you monitor the starter/starter solenoid. BE CAREFUL - THINK BEFORE YOU DO. WATCH OUT FOR MOVING PARTS. Because there is a clicking noise I would NOT suspect an alarm system issue.