Adding security to your car is seamless. The optional Isis inLink wireless system comes with a key fob for unlocking doors and popping the trunk of course, but it also has a security button that locks out the Mastercell from any of its normal commands. Once the Mastercell is locked, no amount of hot-wiring under the dash will make anything in the car work. Leads coming from the Powercells will also be dead. Essentially, you can effectively shut down the entire wiring system.