It does not matter actually that we write it on a forum ...I think it has more benefit to inform eachother about the posibilities than to make a thief more wiser...mind you he still has to search for hidden switches...or plugs in his apparatus only to find out that some clever d€ck has switched plus with minus on the OBD so his tool gets fried....
The expert thief rules out OBD and uses his own clocks with a key

I would not advise security glass because if you get involved in an accident the fireman will be given a hard time to smash your window in case of an emergency....do not put your own life at risk just to prevent them from stealing your RNS510 ....
A tracker is pretty useless they jam it on the spot or drive it into a truck and away you go...my lease co has be supplying trackers for years and only two cars were found back..

If they really want your car they will succeed since mostly it is all being done as organised crime...you will only be lucky to stop an average burglar....and they are also wandering the streets...but you have to be just one step ahead of those fatherless sons in order to outfox them