Put off by the high annual costs of Tracker packages, but many companies use them, some tracker suppliers have a recovery strategy in place. Possible you may be able to negotiate an insurance discount, though I suspect insurance companies not that bothered, not even sure if the police would turn out if you advise them were your stolen Cali has been spirited away to ? any cali forum police members comment ?
So for my own amusement I'm just in the process of DIY 'fiddling around' with a GSM GPRS GPS Tracker unit, (market is flooded with these cheap Chinese made, (matchbox sized) miniature trackers at the moment). So this was a punt to see if it worked.
Costs ... £18.00 for the tracker. £4.00 + £10.00 credit for a PAYG GeoSIM Global Roaming M2M SIM card, and a cheap micro SD memory card.
Well it works, ... Smart phone ring it or text it, and it comes back with text of latitude, longitude, speed, date, time and a link to Google maps for a pictorial map location on i phone or Android. These trackers come with internal 8 hour Lion battery and external micro USB or similar plug for external 5v power supply, now I need to find a location were it isn't shielded by metal from the nav satellites, and hard wire it in. So again a cheap Chinese vehicle 12v to regulated USB 5v output adaptor £3.99 .
These trackers have many added features, .. Geo fence and 'listen in' microphone, multiple automatic location reports so you can track were your stolen vehicle is heading, and password safeguarded multiple access, + features programable by coded texts from your phone ... downside .... lots and lots of sub standard ones about, some, not all the features or programming works, so you takes your chance on what you get.
Good luck with whichever route you take, keep members posted on what you decide, what it all costs and ease of use.
Regards,
Rob H.