I installed the CoastalETech Basic LockPick 3 in my '08 RX350. This is the unit that unlocks the Nav while you're driving. It does a fine job at doing that - you can access the POI and enter destination information while the vehicle is moving. But when it goes back to the map display it seem like the unit can no longer figure out where I am - it seems to think I've driven off the road or something. I've read in other threads that this may be because while the unit is unlocked the speed sensor is disabled, so it thinks you're standing still. Is that true? And how do you get the GPS to know where you are again? TIA. -Chip