I was doing some work on my car today, and unhooked the battery.  When I
plugged everything back in and put the key in the ignition, the alarm
started going off, and I can't figure out how to stop it (and leave the
alarm hooked up).

It's a Hornet 740T, but I can't find manual online for it - and of
course I don't have the manual since I bought the car used.

Any help would be appreciated!

Thanks
Earl