I dont know how to go about disconecting it. only thing i can think of is taking its power supply away. other than that anywhere that installs audio equipment and alarms would be able to disconnect it for you.
hope that helps a bit, i dont know much about alarms.
-Guardian
__________________ 1986 Mustang LX 3.8l- Blown Engine and Sold
1990 Mustang LX 2.3l- Totaled (Rust in peace)
1998 Escort ZX2 2.0l- Totaled (Rust in peace)
2000 Escort ZX2 S/R 2.0l- B&M short throw shifter, Borla Muffler, Iceman Intake, Centerforce Dual Friction clutch, Visteon PCM CWQ3 (Oct 91+), Tokico Struts, Energy suspension bushings, Eibach Lowering Springs. (all from factory) | 
[*..Removing An Alarm..*] 
I had an alarm installed in 1998, & now it keeps going off on its own. It even goes off while i am driving. The Company that installed the alarm is no longer in business. Could Someone Construct Me on how to remove it or where i can go to have it removed?! However, I prefer to remove it myself. My Mustang is a 1997. 
