Hi Guys,
This is on topic so I hope you don't think of it as spam!
Things to remember...
Insurance companies do not give discounts for cars with after market tracking systems. Sales people will tell you otherwise, but if they do then ask for the company concerned and phone them if this is an aspect you are interested in.
If someone wants your motor badly enough they will get it. All we can do as an industry is slow them down and improve the chances of recovery.
Tracking devices come on all shapes and sizes... and costs to suit every budget. You DO, however, get what you pay for where the equipment is concerned.
A 12 or 16 channel GPS receiver will give a more reliable position than a 4 channel, but might cost a little more. A unit with digital outputs, allowing you to switch devices in the vehicle on or off, will cost more than a dedicated GPS tracker that does nothing else.
I have clients who have recovered vehicles stranded in France and Germany, after the driver had been gassed for his passport and wallet.
Look at the accompanying software. Does the unit come with a subscription to a web site that will allow you to locate your vehicle on a map? I know ours goes down to street level worldwide, and Rusty Rhinos used it last year in the Sahara (Tunisia and Algeria) to allow folks back home to track their progress.
Letting the Police get there first would be a wonderful thing if the buggers responded fast enough. When they do then they might get the tea leafs... when they don't then you will get to the vehicle before them (assuming you have fitted some sort of inhibitor.)
Finally...
Give due consideration to the power delivery and the location of the unit. Antennae can be discreet and not visible from the outside of the motor, and assuming you are not stupid enough to put a feckin great sign on the outside of the vehicle that says "Tracked By Wewantourlandyback.com", you will get the vehicle back.
Power wise: A supplementary car battery is serious overkill and might be a target, so fitting a small battery of between 10 and 30 volts (in my case), and allowing it to charge from the main alternator will prevent the trtacker from being disabled through simply disconnecting the battery.
Check out my sig for more details or PM me. It's my pet project so I should be able to answer any queries you might have.
Cheers
Ryder