Can the wifi module be safely left permanently attached to the OBD socket? I'm assuming it powers down fully once the ignition is switched off.
Actually John you can't in my case, as soon as I plug the adaptor in it starts to draw power. This may be car specific I guess, so you'll need to plug it in and see.
Also, in response to RJW, as JohnS says you don't need to be connected to the Internet as the App software is stand alone. In fact, one of the disadvantages of using the WiFi connector needed for the Apple kit is that it prevents you connecting to the Internet by WiFi whilst you're using it. You can, of course, still connect to the Internet via GPRS/3G/4G etc. if you need to.
