Hey, guys. I've had my Celica since new. Its a 2000 gts. Right from the start, I had problems with the alarm. Occasionally, I would press the unlock button on the remote, the doors would unlock, but the alarm would not disarm. I'd open the door and the alarm would go off (sometimes right away, sometimes not for a few seconds). Brought it back to the dealer and they could not find the problem. Well, I am a service tech by trade, so I figured I would look into it myself. Best I could come up with was that everytime this occurred, the dome light was not working. I managed to trace that back to a wiring harness to the right of the stereo (near the fuse box). It seems there may be a loose wire back there, because if i jiggle it, the dome light turns on and off. Well, I haven't pin-pointed the exact wire yet. Any of you that have seen the harness I am referring to know that there are a lot of wires back there. I was wondering if any of you have seen this before? Anyone got a schematic for this by any chance? Any theories on the relationship between the dome light and the alarm? I ran that one by the dealer and he told me the two were not related (which I did not buy). Any help here would be greatly appreciated.