I am wiring my SE harness right now...maybe i can help a little.
Overhead console...need a different domelight than stock...hard to find but wires into the red/yellow connector.
Low fuel relay (mounts to the right of your glovebox by your key in buzzer)...this harness runs the length of your dash and connects to the door ajar harness near your e-brake. Low fuel relay also has to SPLICE into your dash harness for the fuel gage.
Door ajar harness connects between the low fuel relay and the overhead console harness. You have two leads for your door ajar switches (which need to be installed perpendicular to the door strikers). If you can find any door ajar switches, let me know (the one thing i don't have.
Overhead console harness runs from the drivers rear seat area (where it connects to the door ajar harness) up between your headliner shell to the control console on the overhead console.
The seat belt light on the overhead console is beyond me...no idea where it connects to (I hate the stinking thing in new cars, so aint gonna put it in this one).
If I am missing anything here, or if anyone knows better, please share, but this is how I am wiring it now.
hope this helps.
PHC