Ones that are installed properly

Seriously. Buy any brand name alarm (see list below) from a reputable shop that has experience to have it installed properly. Don't just go to the cheapest guy. Another popular brand not listed there is Compustar.
Alternative Lock Systems
American Security Systems (ASS)
Audiovox
AutoLoc
Autopage
Autostart
Avital
Black Widow
Bosch
Brant
Bulldog Security
Carbine (Magnadyne)
Clifford
Code Alarm
Commando Vehicle Security
Crime Stopper
Delta Vehicle Security
Directed Electronics (DEI)
FutureTechSafety.com
Harrison-Hellfire
Hella
Hornet (DEI)
Light-Rite
Magnadyne
Marksman
Micro Alarms
Omega Research & Development, Inc.
Prestige (Audiovox)
Pursuit
Python (DEI)
Rampage
SCS / Frigette
SECO-LARM
Sidewinder (DEI)
Silencer
Silicon
Spetrotec
Technκs (Ungo)
Valet (DEI)
Viper (DEI)
Wasp (DEI)
Naturally, your next question is gonna be..What's a reputable shop? Call Moe at Safe and Sound. Tell him TN reffered you.
Safe and Sound Installations