Wifi on saves battery power; its more cost efficient (in terms of energy) to use wifi than 3G. Having bluetooth off will also save data because your device constantly searches for bluetooth enabled products to link up with when it’s turned on. Same thing for turning off the “ask to join networks” feature of the wifi. It constantly scans for a wifi network if that’s enabled, which will drain your battery. The reason no one does the legwork for these to document is that it’s been documented hundreds of times before with other products; the facts don’t change just because the phone does.
Keep your factory features and expand your level of in-vehicle connectivity with Pioneer NEX and iDatalink Maestro RR. When your AVIC-7000NEX receiver is installed into a compatible vehicle using the iDatalink Maestro RR (sold separately), you’ll be able to enjoy the performance and features of the AVIC-7000NEX receiver plus touchscreen control over key factory audio features. The AVIC-7000NEX supports factory functions via the iDatalink Maestro RR including: Steering Wheel Controls, Media Player (including the factory AUX-in and USB ports), Hands-Free Telephone, Voice Commands, Satellite Radio, and Secondary Display Support.