I am not a big fan of nav systems. On the 2 vehicles I bought in the past 14 months, the G8 didn't come with it, and I chose NOT to get it in my Expedition.
The turn by turn worked well. I used it once or twice during the free trial period. The talking comes thru the cars audio system and turns down the music so you can hear the vioce. I would not pay $10/month for this service. Just my .02
The turn by turn worked well. I used it once or twice during the free trial period. The talking comes thru the cars audio system and turns down the music so you can hear the vioce. I would not pay $10/month for this service. Just my .02