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According to their website we need Firmware version 4.42 to access what we want.Confirmed today from Scan Gauge there's no 'firmware' specific to our CTD and it does not matter if you buy it directly from Scan Gauge or through one of their vendors, you'll get the very same device and configuration.
The unit I bought off the shelf at autozone has V4.13 so I need to send it in for a upgrade from what I understand.