you may need a door lock relay the dei part is 531m but I dontk now for the ungo model. You may. Not necessarily sure. its been a long time since I did mine
yes thats it. like I said you may need it you may not. I honestly cant remember off the top of my head. all it does is supply a stronger pulse to pop the doors so if you do have it its not gonna hurt anything by having it and notreally needing it.