Works perfectly, transmits on FM signal: https://www.amazon.com/Bluetooth-FM-Transmitter-Wireless-Adapter/dp/B07F2RTN5Z
What you can do is buy one of those FM radio Bluetooth transmitters. I purchased one and it works great. Some of them are really cheap and will produce a more static sound, but the one I have works and sounds great.
https://www.amazon.com/dp/B07F2RTN5Z/ref=cm_sw_r_apan_glt_fabc_JSGP09R7QZYMAY5DEW66