I got Sygic installed, I had to side load it since it killed the Play store app when I tried to install it.
You can use
http://apps.evozi.com/apk-downloader/?id=com.sygic.aura to download the apk. I wasn't able to use this URL on the unit itself for some reason (it wouldn't download), so I did it on my computer and uploaded the apk to my Google Drive. Then I used Drive on the unit to download and install the apk. Then the app will download some data plus whatever maps you select (500MB Canada for me) and you are off and running.