Can anybody that KNOWs tell me how recent I can go with map discs before just grounding my brake wire no longer works as a bypass. Currently have CNDV-60M but only have east. Can anybody help me with the most current map disc (west) that wont screw up my View in motion or tell me how to bypass if I do go with current map discs!? I would be glad to pay shipping and a few $$$ for your time.....

NOBODY knows this? I thought this would be a fairly easy question for the smart people that commonly surf this domain!! I guess I'll just try the 90's and hope they dont ruin my in motion video.