Ahhhhhh.....I see what you are saying now. There are only 2 ways to wire up the parking lights on our cars. There is a positive wire,and there is a negative wire, but i have never heard of anything like that before! When that does happen, disarm your alarm, and count the number of flashes from the alarm's red blinky light. Its a diagnostic to tell you if your alarm went off while you were away. I believe 2 flashes is your shock sensor, and 3 flashes is a door pin. Where is your shock sensor mounted?? It might be possible that it is mounted very close to the relay that controls your hazzards. The relay "clicking" might be enough to set off your shock sensor.I remember if my sensor was turned up, my ticking exaust when its cooling down, would set off the alarm.I guess it could be possible that its backfeeding through your parking light wire when the hazzards are on, but i have never seen something like that happen before. Check that out, and find out what zone is setting off your alarm by looking at the red led after you disarm it....Thats all i can really think of for now...

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)