My radio boasts all these features but I don't see how to work them. I downloaded the manual but don't see the USB port where it says it should be. Also, looking online, I see a square looking USB port where I only have an empty hole covered by a round knob. Some suggest it is located at the back of the radio. I had the radio taken out to put in an expander........turns out none is there. Why would Suzuki go through the pain of displaying all these attractive features: phone, wifi, usb, etc when all that works is the cd player and the radio (now that I have installed expander). Has any one else out there had similar challenges? Any suggestions for me? Anxious to have it fixed. Hate looking at them everyday with them all useless