Diable the aftermarket Ford Explorer alarm/anti-theft system

The anti-theft alarm on my 1997 explorer is very annoying. If it's a factory installed module, it's going to be difficult to diable/turn it off.

Luckily, it turns out that mine is an aftermarket one. So, it can be turned off by doing the following:

1. put the key in the ignition,
2. turn forward all the way just before cranking.
3. Then within 5 seconds, locate, press and hold in the valet/overide button, found under the dash area, (push button, spring loaded)

(Your valet switch might be the toggle (on/off) type. in this case, key on, flip switch in opposite direction, then turn the key off.)

This should reset the alarm.

I found it in allexperts.com through Google.