I just purchased a 2020 3500 High Country. It has the Advanced Trailing System has (U1D) but not the TTPMS. Can I just purchase the sensors for the trailer tires to get this option? I read that for the 2019 Models it required a factory module installation but for 2020 models, the modular was standard (with the vehicle tire pressure) - all the option provided was the remote sensors for the tires. I would love to use the truck system rather than get a separate tire pressure monitor..Thanks in advance.