To update a little more on the Android location settings. Today I rode in both modes, Device Only, and High Accuracy. I started in Device Only mode and noticed the speed lags behind quite a bit. From a stop I'd read zero for several seconds then it would jump to something like 8, then something like 12, then 16 ect. There didn't appear to any shown incremental speed increases.

At my turnaround point I stopped and changed over to High Accuracy. This was much better as far as showing the incremental speed increases and eliminating the lag. There is still some lag but not as bad as in device only mode.

Bottom line:

Device Only gives better phone battery life but the speed displayed on the unit head lags. High Accuracy mode uses slightly more phone battery but reduces the speed lag displayed on the head unit.