So I bought a used Mazda 3 and noticed it came with an Ipod cable. I got a ipod to 3.5mm aux adapter so I can use it with my android phone. But I cant find the setting that uses the cable. I tried both the tape/md button and cd. I have the stock radio/audio and I looked online to see that the cable was more than likely installed by a previous owner. Any suggestions on how to get it to work? I'm starting to get really sick of radio programing.