Tracking units headache

Ive been a client of Cartrack for a couple of years now and didn't have any bad experiences with them BUT there is a problem that popped up I had one hard wired unit in my vechile then I was contacted by an agent telling me they want to install a second hard wired unit because the ********s seem to find the tracking units too easily... Ok no problem I then realized that this started draining my vechiles battery Now this is where it starts getting interesting, I get contacted to install a third wireless unit at extra cost because according to the agent they can hide it where its harder to locate by ********s How many units are still to come? Why should I pay extra because of Cartrack that seems not to trust the existing units? Im looking at moving to another service provider that offers me ONE wireless unit at a very good fee and partners with Rentrack And yes I know alot of people in the tracking industry Come to the table Cartrack