What I ended up getting was a Bluetooth / AM-FM Radio transmitter.

Connect the phone via bluetooth to the device and then tune the radio into the appropriate station.

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Auto Enthusiast. Tech Extraordinaire.

05' Land Rover LR3
06' E53 X5 3.0i
07' X3 3.0si
08' X3 3.0si
17' Interceptor 3.7 AWD Sedan