What Navigation App are you using with your Android Head Unit?

My Android Head unit came preloaded with Sygic Navigation. It ok, it lacks a lot of detail and doesn't always choose the best route. Google maps is ok as long as you have a destination plugged in. I'm looking for a decent app that provides good detail and tracks your heading (like Google maps does when you have a destination plotted). I like Google maps but it doesn't track your heading as you drive without have a destination plotted.

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