That's what I was telling him. The 5500 will never work with Android in app mode but it will work with iPhone 5 with the firmware update.It's not compatible with Android even with the firmware update. That's why I bought the 8500. It is compatible with the iPhone 5.
Android Compatibility | Pioneer Electronics USA
Firmware update is on the product page.
AVH-X5500BHS - 2-DIN Multimedia DVD Receiver with 7" WVGA Touchscreen Display, MIXTRAX, Bluetooth®, HD Radio™ Tuner, SiriusXM Ready, and AppRadio Mode for iPhone® | Pioneer Electronics USA