Oppo, I need your help finding an FM transmitter for in-car use, but my requirements may make this impossible...

- must have a battery or usb power, because the power sockets (cigarette lighters) in my car are dead, but I have plenty of high-powered usb ports

- must not require an aux-in port on the radio, because I ain’t got one

All the devices I’ve seen so far are either powered by the lighter socket, or use an aux port, but none seem to match my needs.

Any help/ideas? Thank you!

Update: i found one, finally!

Bluetooth FM Transmitter, AUKEY Wireless FM Transmitter Car Radio Kit with Dual Port Car Charger for Any Bluetooth Audio Device (Black) https://www.amazon.ca/dp/B01DVFU53C/ref=cm_sw_r_cp_apa_QWUiBbH8H89TZ