Really good idea regarding the secondary battery. I was thinking about a viper, but I'll study up on that pitbull as well. I've had two vehicles broken into this past year, and they weren't even nice cars. I had my driver side window shattered just to steal a portable garmin worth maybe 100$. I planned on doing alot of interior upgrades to the Z (MT base) including a sound system, radar detect, Kenwood DNX6960 in dash, It just makes me nervous.
NOTE TO SELF: Save your Receipts!