Issue summary: Post-mod, my dome light comes on when I unlock the doors with the remote or turn the engine off, and the lights go off when I lock the doors with the remote or turn the engine on. But they don't come on when the car is running and a door is opened.
So everything works when the ground is triggered by the alarm module, but not when the module times out and it's back to "normal" mode. It seems like some ground might be missing now for the normal operation mode for the dome light. I'm pretty sure it happened when I sparked the wires, but I don't know what to check.