Detecting hidden recording devices in a vehicle requires a combination of physical inspection and technical methods. Focus should be placed on common concealed locations such as under the seats, gaps in the centre console, door storage compartments, and OBD interfaces. Use a flashlight and tactile inspection to check for abnormal protrusions or newly added cables. On the technical side, radio frequency detectors can be employed to scan for abnormal radio signals, or the phone's recording function can be utilized to test for environmental electromagnetic interference-persistent static noise may indicate the presence of eavesdropping devices. Professional tools like non-linear junction detectors can identify semiconductor circuits, while harmonic radars can capture the signal signatures of standby devices. For users unfamiliar with vehicle circuitry, it is advisable to contact an authorised service centre for circuit inspection or engage a professional counter-surveillance agency to conduct thorough detection using equipment such as thermal imaging cameras. Avoid direct disassembly to prevent compromising critical forensic evidence like fingerprints. For routine prevention, regularly clean the vehicle's electronic ports, park in monitored areas, and refrain from discussing sensitive matters inside the car.