recently did an engine swap on my 2011 mazda 3 replaced the starter and battery my car wont start not sure if i hooked up the starter correctly

What is your question?

there is one wire hanging in front by the starter but isnt long enough to reach the starter not sure where it goes please help me. the engine is the same as my old one its a 2.0L

How long has your 2011 Mazda 3 had this problem?

a few weeks