Vehicles sold in the US market are restricted by local radio band regulations. From the factory, they only support receiving odd-numbered FM radio frequencies and cannot receive even-numbered FM stations.

In some regions, this may result in missing available stations or being unable to tune into target channels, affecting daily use and listening experience during long-distance travel.

We provide professional coding service based on OEM protocols to remove the FM band restriction on North American-spec vehicles and fully enable reception of even-numbered FM frequencies.

After activation, the vehicle can normally search, store, and play all odd‑ and even‑numbered FM stations, achieving full compatibility with radio bands in China and other regions.

The entire process only adjusts system parameters via software, with no head unit disassembly or hardware replacement required. It does not affect the original audio sound quality or other functions, ensuring stable and reliable performance, allowing full FM radio functionality worldwide.