Do not modify your vehicle in a manner that may affect its handling, stability, or reliability, or install non-genuine Honda parts or accessories that may have a similar effect.
Even minor modifications to vehicle systems can affect overall vehicle performance.
Always make sure all equipment is properly installed and maintained, and do not make any modification to your vehicle or its systems that might cause your vehicle to no longer meet federal, state, province, territory, and local regulations.
Do not modify or attempt to repair any of the electrical components.
Honda Civic Owners Manual. Devices that Emit Radio Waves
The following products and systems on your vehicle emit radio waves when in
operation.
Audio System
Bluetooth Audio
Bluetooth HandsFreeLink
Collision Mitigation Braking SystemTM*
Immobilizer System
Keyless Access System*
Remote Transmitter
Wireless charger
Each of ...