[lrvick]

Check out AutoPi. Open source, plugs into your ODBII port so you can not only track your car but also get maintaince alerts etc.

[drewzero1]

Depending on how old the enthusiast vehicles are, they probably don't have an OBD-II port (or possibly any port at all). None of mine do, up to the mid 90s.

[kQq9oHeAz6wLLS]

My truck barely has an electrical system (6v, positive earth), let alone a computer.

[fragmede]

1996 is when OBD2 became mandatory for all cars manufactured in the United States

[Sebb767]

> plugs into your ODBII port

Which is usually quite easy to check. It's not a guarantee, but with someone sophisticated enough to crack a modern car there's a good possibility they know to check the OBDII slot.

[lrvick]

They come with extension cables. You can always plug it in under the dash and leave the exposed one disconnected.

If they are sophisticated and have time to take the whole car apart then you are SOL anyway as they will find any transmitters with an SDR.