Battery draining overnight

I did the light test by removing the battery cable from the neg post and used the test light between the post and the cable and the light came on meaning I have an open circuit
Meaning you have a closed cir somewhere.

Open cir does not conduct electricity

Be sure you closed your doors before that test.

What ignition system do you have?

The wiring harnesses you used are they OEM type or " universal"?

Are you sure the key is in the off position? Some times a key / lock gets so worn that you can remove the key in other than the off position.

If you wired the field to a full time on wire that would drain the batt fast.