AVL-900 from goopass ...
well its not really "mounted" .. but its small and works perfectly ..
the only bad thing is that the device need about 2 minutes to boot ... so if you turn the key and runn off ... the first few meters may missing on the tracking later.
All Goopass Units working just fine using smartpipe .. since GG Version 1.3
Tracking only .. so I/O or other features ... but the modell i suggest to you is a versy small Easy to use tracking device .. wich does not have any of this features.
(if you connect it to a PC .. you can use the device parralel as GPS-Mouse)