How to increase screen resolution (requires root)

DISCLAIMER: I will not be held liable for any damages or bricked head units as a result of any attempt to reproduce the following. Proceed at your own risk!

While messing around in ADB, I found where the screen resolution values are stored (allegedly) persistently:

• Connect to vehicle via ADB (default port 5555 for wireless)
• Enter `adb shell`
• `su`
• `cd /data/property`
• `busybox vi persist.sys.NV_DISPXRES`
• input `i`, then delete default value `800` and replace with `1600`
• input `ESC`, then `:x`, `ENTER`
• `busybox vi persist.sys.NV_DISPYRES`
• input `i`, then delete default value `480` and replace with `960`
• input `ESC`, then `:x', 'ENTER'
• `input keyevent 26` (screen should turn off)
• `input keyevent 26` (screen should turn back on)
• If above doesn't refresh, exit the shell terminal and try `adb reboot` (or just reboot the unit manually)