Correct, the MCU2 upgrade wont show as an "upgrade," but us available when you create a new service request and select "Upgrades & Accessories > Infotainment Upgrade." From there, let them know in the "describe concern" field if you want MCU2 with or without the digital radio tuner included. MCU1 used an analog radio tuner, and MCU2 uses a digital one that communicates with MCU2 via ethernet. Some vehicles had AM/FM/XM, and others just had AM/FM. The Radio Upgrade doesn't get AM, but would have FM/XM or just FM (depending on if you had XM previously). Just the MCU2 upgrade is currently $2,250 USD for AP2.0/AP2.5 vehicles or $1,750 for those with HW3. You may get quoted the $2,250 if you have FSD but are still on AP2.0/AP2.5, but should only have to pay $1,750 if you have FSD. The reason is FSD gets the HW3 upgrade free of charge, whereas other users have to pay for the autopilot computer. The original cost of the MCU2 upgrade was $2,500, and the Radio upgrade is an additional $500 USD.