I would advise taking it down everytime you leave your vehicle. And if you happen to be in a bad area take it with you. I had both my old and new GPS stolen out of my car (popped the lock) about a month ago. They went right in the center console and got it. I was fortunate and got them back though because I had the serial numbers wrote down (another piece of advice keep the serial number wrote down). I called local pawn shops and found them. Also the thieves were tracked down too because of that.
Two pieces of advice I will repeat.
1. Never leave your GPS viable. If you are in a known bad area take it with you if you can as an extra precaution.
2. Write down the serial number so in the even that it is stolen you stand a chance of getting it back. Most bad guys will pawn them for the money. Also aids the police in catching them if you get it back from the pawn shop. That is even more satisfaction that you are able to help catch the jerk that stole it in the first place.
Thanks for the advice! I never thought about writing down my serial number, but that is one of the first things I am going to do today! If I am in a bad area, I will take it down/hide it/or most likely I will just take it with me.
Thanks again!