Trying to pull the ecm fuse and reset the ecm

Put the battery in backwards, because for some reason there’s red tape on the negative which is factory tape and there’s nothing indicating the positive on the positive and all my headlights and tail… 

Like something stuck in dashboard and over head

Installed a new ecm and still having the same issue with new ecm

Ecm problm wring problm or rilly problm

ECM not on and no communication