Gang,
I have a recommendation for any of you with a trailer hitch.
I have one of these on my X5 and I use it ALL the time. It's great for surfers/beach goer's who can't carry keys or money. It's great for securing your spare key. It's strong as hell, no one is going to be able to open it without the code. And, if someone needs to borrow the car and you can't get them the keys easily, just give them the code.
Definately worth the price I paid for it. Has saved my ass a couple of times.
http://www.hitchsafe.com/ ** No affiliation
B
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"When two people agree on everything, one of them is not necessary" - Arliss