FM transmitter

Hi again. I recently got a satellite set up for my trailer and want to be able to listen to the Galaxy music stations on a little Sony book shelf stereo, no audio in jacks for hard connection, no Bluetooth, just FM. I think I have heard of FM transmitters for this purpose but all I can see now are Bluetooth units and they all seem to be made for specific audio sources and geared for playing on car stereos. If anyone has any suggestions, preferably proven ones, they would be appreciated. Thanks.

Rick in Cobourg