@jon_bondy The display uses the speed from the ECU and does not have GPS. If you download the firmware from Garw's website, it will have a change log in the file. As far as the display dimming, you can control the dimming level. Press and hold the button on the right side of the column and the dimming will cycle through different levels. You can also set this value in the setup screen. As far as I know, you cannot change the needle size or color.