Navigation disc updates
I was told by my dealer that AM switched to a SD card nav system around 2010-11, and there are no update discs past that. Another blogger said he updated his with a Volvo disc (the system is manufactured by Volvo). I contacted a Volvo dealer who looked into it and says that they don't think the current Volvo update disc ($200+ US) will be compatible.
I currently have option of Android Auto (comparable to Apple) in my Cadillac, but I'd be very interested in your instructions for subbing that system for the current navigation on board (although I'd have rather had original graphics and voice etc.).
If anyone has other ideas for updating the existing nav disc, or even access to a "used" replacement disc, I'd be interested.