The CoolStream Duo is NOT compatible with the Sony ICF-CS15IP using only the 30 pin connector. You can use the audio cable included with the CoolStream Duo to connect to the Sony’s 3.5mm AUX jack.
Here are the steps of how to use the CoolStream Duo with the Sony ICF-CS15IP.Continue reading: Does the CoolStream Duo work with the Sony ICF-CS15IP?