Alarm kill switch doesn't work

I have a starter interrupt system that is deactivated when I use the RIGHT turn signal.  Today, the alarm (horn) still goes off and the car wont start even though I've got the right turn signal on like I always do.

It's a 97 Buick LeSabre and I don't know if it's a factory system.  I doubt it.

Any help or ideas would be appreciated.

Thanks

I just replaced the left rear turn signal bulb because it was not working.  Then I tried to start the car and it started right up on the first try!

Problem solved!  The car wouldn't start because a light bulb was out!  Just like a crummy set of Christmas lights.  Or so I thought.  I drove the car to pick up dinner and then it wouldn't start again in the parking lot and I had to walk home.

It seems like an electrical short somewhere now because when I locked the door to leave, the warning noise came on as though I'd left the key in the ignition or the lights on, but I hadn't.

If someone here doesn't bail me out, I'm calling AAA and probably spending $$$.

Help!

OK now I went back and tried to start it again before calling AAA and it sputtered to a start while the horn went on and off.  I was able to make it to the local garage without calling AAA.

If anyone has ideas that can save me from paying $$$ for this guy to go through my whole electrcial system, let me know.

BTW I checked and the chip is in my key and looks fine.

Good night and have fun.  This looks like a great forum for all you people with a clue (unlike me).

thanks.

is there an after market alarm in your car?