That type of adapter will not work. The USB port is specifically made to play songs from USB thumb drives or older iPod type devices. However, there are a few adapters that appear to emulate a thumbdrive for just this purpose. I purchased the Yet-M1 (https://www.amazon.com/dp/B074WQRPFG?psc=1&ref=ppx_yo2_dt_b_product_details) and it does work to allow you to play music over bluetooth in the standard CD player WITHOUT using the auxiliary port. It appears to stream approximately 5 seconds of music as a buffer into a local file so the CD player picks it up as a thumbdrive. It's not perfect, but it has worked well for me over the last two weeks I've had it.