sheivan

This is my first post. I have a 1993 FD3S RHD. My glove box light was always on so it kept killing my battery so I ripped it off and my interior and tail lights then stopped working. I put the light back on and it did work again but now when I turn the key on the dash doesn't work. The light works but nothing else (gauges, odometer, signals, windows etc.). I drove the car for about a day and then The fan stopped working. The alternator doesn't charge and it also fuel cuts.

These are the things I've done so far:
- changed the TNS relay
- replaced the ECU with another stock ECU

These are the mods on the car:
- downpipe
- mid pipe
- cat back
- HKS intakes
- aluminum rad
- FMIC

Please help me this car is beating my brain up. I don't know where to go from here. I would really appreciate it if someone could help me.