Chrysler Repair: Fuel pump wiring question: Unsafe modification, inner fender, fuel gauge

Question
I have a 1990 Lebaron GT convertible. I am trying to repair numerous problems and have encountered a strange one. While looking under the car, I found that someone had spliced a wire into the wire leading into the fuel pump (not the ground wire). This is the car with a separate pump and sending unit. This mysterious wire is strapped to the frame and travels into the engine compartment. I disconnected this mysterious wire to see if the car would start and it starts and runs fine. However, the airbag light comes on and stays on and the convertible top will no longer operate. I reconnected the mysterious wire and the air bag light goes out and the top works. I traced the other end of the mysterious wire and found it spliced into one of the white wires (there are 2) that connects to the back of fuse #5. I have no clue what is going on here or why this wire is like this. All I know is that disconnecting it causes the air bag light to stay on and the top to stop working. Any light you could shed on this would be greatly appreciated. Note: the fuel gauge always reads less than 1/8 (flashes low fuel), the odometer does not show (digital dash), the cruise and trip computer do not work. All the other dash (oil, elec, speed, rpm, etc) and the radio work properly.

Answer
Hi Gord,
The white wire is supposed to supply power to the airbag module and the power top operating switch. It is not supposed to supply power to the fuel pump. The fuel pump is supposed to get its power from the automatic shutdown relay in the engine compartment (on the left inner fender, frontmost of the three relays) on a dark green/black wire wire that passes thru position 24 of the bulkhead between the engine compartment and the cabin and then on to the fuel pump. What was done evidentally was to hot wire the fuel pump to the ignition switch and that is a safety hazard in the event of an accident because the pump is supposed to stop whenever the engine stops turning so that if a fuel line breaks in the accident the gas will not be pumped onto whatever fire might start in the accident. So I would advise you to reconnect the pump like it is supposed to be.
On the other items: Please address those to me one at a time in detail and I will respond to them individually.
Thanks for your understanding as I can not conveniently deal with each now.
Roland