I purchased a $30 steering wheel bar as a visual detergent. You don't even need to lock the device. If thieves plan to steal your vehicle they will.
However, the high tech thieves might not be willing to carry saws. At least this limits the amateurs trying to steal your vehicle and cause damage if unsuccessful. Do you want your vehicle back if it was badly damaged in their attempts?
Not all systems can guarantee preventing theft. Get good insurance and lower the probability as a target. A steering wheel bar might not be pleasing to see, but a low cost simple solution, so your vehicle would still be parked to drive home.
Last edited by slambmw; 09-30-2012 at 06:59 AM.