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I am new to iPhone dev't and I am going to work on a project where I have to develop a bluetooth enabled iPhone app to control a vehicle stereo, and DVD player. The vehicle has a physical remote control (IR) and the aim of this project is to replace the IR with a bluetooth enabled iPhone app to control the functions that the IR does. Play, stop, next,previous etc...
The hardware can communicate with AVRCP 1.4 . I don't know every detail but that is what I know.
What knowledge do I need to implement the application?
Thank you.
AVRCP is a Bluetooth 2.1 profile, so you will need to go through the MFI program - even then, if your are not the manufacturer for the audio unit you will probably not be able to get the solution certified as you won't be able to get the Apple chip added to the device.
To clarify my answer - According to this document iOS has support for AVRCP, in conjunction with A2DP to allow external devices (such as a car stereo) to play/pause/skip tracks being played by the iOS device. Controlling an external device from your iOS device is not available to an app