Did the NAV VSS modification but have a question

[Luv2Camp]

So tonight I took out the NAV radio on my 06 H2 and put a toggle switch on the dash for the VSS sensor wire to allow me to be able to use the NAV search feature while driving (my wife of course will be the passegner using while I am driving!)

Tested it out and works great. While driving hit the switch and the grayed out searches are now able to be manipulated. The question I have is that I have seen some state that with the VSS wire in the open position, the NAV still works but can get jumpy. When I open the circuit for the VSS wire, it allows me to navigate the menus but the map does not change my position at all until on the map until I close the circuit again. Anyone else experience this as well?