The Samsung® (OEM) 20 Pin Multi Adapter  and the Samsung® (OEM) 3.5mm Headset Adapter - AAET503CBEBSTD was just what I needed to set up my phone to both charge and play music in my car through the cassette adapter. Outside of the soft cranking noise of the cassette player trying to turn the adapter in the player. it just workers great. no hunting for empty spots on the radio where we can listen to it trouble free with a transmitter. No hissing or loss of signal with a transmitter. I offer this to others as an idea for them to do if they can do so.