That radio interference might be coming from your cheap USB charger - Appareo

Cheap chargers may carry FCC/CE marks, look safe and legit, but ultimately they can damage your ability to receive and transmit radio communications. This could be as benign as negatively impacting your ability to receive an AM radio station, or as painful and inconvenient as knocking out two-way radio communication completely -- especially if that is your aircraft VHF comm.

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That radio interference might be coming from your cheap USB charger - Appareo

Make hands-free calls from your Bluetooth enabled Smartphone. LED Displays the exact frequency the transmitter is tuned to for easy syncing with your vehicles stereo system. Wirelessly Stream music from the Digital FM transmitter to your vehicles FM stereo. Charge your devices with the Dual 2.4 + 1 Amp USB ports on the 12-Volt car charger and change music tracks forward/back play/pause answer/hang up the phone or voice controls like Siri and Google Voice.

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That radio interference might be coming from your cheap USB charger - Appareo

Characterizing interference from USB chargers - Avionics/Panel Discussion - - A community for Mooney aircraft owners and enthusiasts

Portronics Auto 15 Bluetooth - FM Transmitter in-Car Radio Adapter for Hands-Free Calling, Music Streaming, USB Reading (PD 20W+QC3.0) Fast Charger, Supports All Smartphones (Black) : : Electronics

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