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A navigation system switches to a different operational mode based upon a figure of merit determination of the current position solution by the navigation system relative to the map database. If the vehicle navigation system is guiding a driver along a recommended route, and the figure of merit drop

A navigation system switches to a different operational mode based upon a figure of merit determination of the current position solution by the navigation system relative to the map database. If the vehicle navigation system is guiding a driver along a recommended route, and the figure of merit drops below a first predetermined threshold, the navigation system disables an automatic route recalculation routine. If the figure of merit drops below a second predetermined threshold while the vehicle is in route guidance mode, the navigation system displays a textual display of the turn-by-turn instructions along the recommended route to the destination. If the vehicle navigation system is not in a route guidance mode and the figure of merit drops below a third predetermined threshold, the navigation system displays a map of the area surrounding the last current position solution, without displaying the current position of the vehicle.

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A navigation system switches to a different operational mode based upon a figure of merit determination of the current position solution by the navigation system relative to the map database. If the vehicle navigation system is guiding a driver along a recommended route, and the figure of merit drop

A navigation system switches to a different operational mode based upon a figure of merit determination of the current position solution by the navigation system relative to the map database. If the vehicle navigation system is guiding a driver along a recommended route, and the figure of merit drops below a first predetermined threshold, the navigation system disables an automatic route recalculation routine. If the figure of merit drops below a second predetermined threshold while the vehicle is in route guidance mode, the navigation system displays a textual display of the turn-by-turn instructions along the recommended route to the destination. If the vehicle navigation system is not in a route guidance mode and the figure of merit drops below a third predetermined threshold, the navigation system displays a map of the area surrounding the last current position solution, without displaying the current position of the vehicle. wherein a hook may be removably inserted to remove the removable key from the key passageway.24. The connector system of claim 20 wherein the removable key defines a key latch and the connector body has a latch receptacle, and wherein the key latch and the latch receptacle cooperate to removably retain the removable key in the key passageway.25. The connector system of claim 20 wherein the removable key has a rearward key end that protrudes from the connector body and a forward key end opposite the rearward key end, wherein the key latch is on the forward key end.26. A connector system comprising: a connector body; a passageway in the connector body; a moveable contact resiliently attached to the connector body; a lead end, wherein the lead end is insertable into the passageway; a lead contact on the lead end, wherein said moveable contact is aligned with said lead contact when the lead end is fully inserted into the passageway; and an actuator, wherein the connector body defines an actuator guide adjacent the passageway, and wherein said actuator moveably reside in said actuator guide, and wherein said actuator is vertically aligned with said moveable contact; and a removable key, wherein the connector body defines a key passageway adjacent the actuator guide, and wherein the removable key is removably insertable into the key passageway; wherein the removable key defines a locked position wherein the removable key is fully inserted into the key passageway, which insertion causes the removable key to push against said actuator, thereby causing said actuator to exert a downward force against said moveable contact; where