im a big fan of behind the plate.
the only problem with the key pad is if the reason your keys are locked in the car is because your girlfriend was the DD and not only did she lock the keys in the car but she left the headlights on as well, then you really start to wish that you had a key hidden.
BTW why the hell would someone need to turn the lights on in the first place?
Put a key in your wallet.
The murse is the way to go!
on top of 1 of your mufflers...mine has been there for over a year now, and i use it frequently...never came up missing, lost, or fell off.
*or put it on the roof in the middle at the back and cleverly disguise it as a bmw antenna
i hope other members don't know where you live because you just told them where your key is located.