LTE/3G/CDMA modem hanging off the can bus usually with some sort of controller. You do not have to enable it. The original use was to track vehicles during the loan pay off and remote shut them off for lack of payment. This includes GPS and other telemetry. They then added the 'buy wifi' package that talked to that. They basically wanted their own onstar. It made it easier to sell the cars/trucks into fleets such as rental companies. If I put anything on the CAN bus that device can see it all. Decode what this spids mean is a diff story, but it is pretty raw and unencrypted.
LTE/3G/CDMA modem hanging off the can bus usually with some sort of controller. You do not have to enable it. The original use was to track vehicles during the loan pay off and remote shut them off for lack of payment. This includes GPS and other telemetry. They then added the 'buy wifi' package that talked to that. They basically wanted their own onstar. It made it easier to sell the cars/trucks into fleets such as rental companies. If I put anything on the CAN bus that device can see it all. Decode what this spids mean is a diff story, but it is pretty raw and unencrypted.