Burnt Wire

light did not light up on either. do i reconnect everything though?

OK. so key off, neither wire shows a connection to ground.
Key in start. there is a connection.
When the switch is in start, something else must be connecting to ground.

One more test. Might need a second person.
Leave J3 and S2 disconnected.
Also disconnect the battery feed. to the key switch.
Now connect the portable test light between the battery positive and the S2.
Turn the key to start.

Do the same but with the J3 line..

Other than that maybe @67Dart273 has some more ideas how to track this down or sees something I messed up.