By unplugging the antenna, you mean the radiop antenna correct??? Its just wierd cause the unit works great parked in the driveway. The moment i start driving the unit continuely reboots. I have tried to reinstall the 2.0 update but the unit won't pick it up because it has 2.0 in it already... I took the unit into pioneer this morning and they will look at it. I also spoke with my good friend, Darren Sprayberry, head installer @ Al & Eds Ontario and he said that he has encountered this problem twice before and they have had to just replace the unit.. So we'll see what pioneer says after i