I've got an old school Clifford alarm that came with mine when I bought it. They 2 fuses were taken out of the harness at the battery. I tried putting the fuses back in an that just set off the alarm. I haven't gone back and tried to disable it with them in yet.
Love the dog!
1993 Mustang Cobra Red w/leather and moonroof
#1412 born 4/6/93
I have an Alpine alarm with the radar perimeter bubble (made for convertibles) that I had installed back in '95. Still works great and it still uses the original two button remote. Remote door locks and trunk release is nice and I can expand or shrink the perimeter bubble however I want.
Mine drains the battery after two weeks too if I don't keep a trickle charger on it.
~1993 Black Cobra, black cloth, original owner, 8lb Paxton 72K
~2003 Azure Blue Mach 1
~2008 Triple Black Mustang GT Conv
~1985 Black Mustang GT Conv
~1970 Black Mach 1 351C 4V
~1970 Blue Mach 1 351C 4V
~1970 Coral Mach 1 351C 4V
~1981 Red F100 Styleside
~2001 Black SVT Lightning