I don't have remote unlock, so, I don't worry about that. Kill switch best. Sears used to sell a security battery that was the best idea I ever heard of for anti-theft. Once armed you could not jump or start vehicle w/o disarming battery. Unfortunately they got too cute and added a auto shut off feature so if you left your lights on the drain on the battery w/out charging would auto shut off the battery also to save your starting power. They were recalled, why? Cause if your alt. died, or some other charging problem with your vehicle the battery would just die, while your are driving worst case, thinking the car is shut off without input power. Could be dangerous if your like driving at night, or on curvy road and bam! you vehicle just dies, no lights, no nuthing..... So, had to give it back.