Service app for RK3066 car HeadUnit family. Android 4.2 and 4.4 Features: - Call via bluetooth from Android apps request. Best usage with True Contacts app! - Media buttons remap from CAN/Key inputs to andorid (all custom players support) - Direct control of media players - Media button emulation, PCradio app direct control (root required) - Auto start music app on boot or on Phone headunit key - Tune volume on speed (steps: 60, 100, 120 km/h) - Background volume change (no stock or syste