From what I remember they stopped updating the nav DVD every year and went to a 2 or 3 year cycle. I seem to remember they also come out in October or November? So might be better to wait till then and check the options again. In the mean time, google maps is way better. lol.
As part of your getting things up to snuff, getting these two things is the best way I found to add bluetooth music streaming for phone to the car:
https://www.amazon.com/gp/product/B00G5 ... UTF8&psc=1
https://www.amazon.com/gp/product/B0193 ... UTF8&psc=1
The receiver turns on and off with the car unlike most of them, and the ground loop isolator clears up a lot of noise and makes the audio sound significantly better. You cna tuck them in underneath the center console behind the drivers seat to stay mostly out of the way. I leave the bottom of the receiver sticking out so I can push the "connect" button when a friend wants to pair their phone.