I don't understand how the little red light on the radio works (6-CD version, upper left area of the radio control head). I believe it should blink when the vehicle is shut down and locked, but I've only seen in come on once in the two weeks since I took delivery. The owner's manual under the TheftLock paragraph says that "when the radio and vehicle are turned off, the blinking red light indicates that THEFTLOCK is armed. How do you arm THEFTLOCK? Does the radio have to be left on when you turn the key off for it to blink? Does using the key FOB invalidate the process since this is how I normally lock the vehicle when I have shut it down. Since I have seen a number of other funnies, it would not surprise me that I have a instrumentation data bus problem (DIC display is not always blank at start-up, the voltmeter gauge is pegged at near 16 volts although the voltage measures 13.9 VDC at the engine compartment fake battery post).