I had one that turned 1/8" into it's own radio frequency. It was really shitty but it worked!
Edit: just looked and they still sell them! https://www.amazon.com/Transmitter-Adapter-Built-iPhone-Players/dp/B076X3GSMH
I had one that turned 1/8" into it's own radio frequency. It was really shitty but it worked!
Edit: just looked and they still sell them! https://www.amazon.com/Transmitter-Adapter-Built-iPhone-Players/dp/B076X3GSMH