Originally Posted by budmanm3
Maybe it has some kind of internal antenna or hidden one for a nice clean look. Not sure. My M3 doesnt have an external antenna either and reception is fine.
Your M3 has its antenna in the rear window, the same place for defrost and keyfob antenna, a little different. This one called Hidden Antenna by antena X. You basically remove stock one and plug hole with another trail rated badge. Hidden antenna gets installed somwhere hidden (roll bar etc) I am asking if anyone here has this setup and how is the reception.