Common accessory settings
Select 
> Settings and General > Enhancement .
With most accessories, you can do the following:
To define which profile is activated when you attach an accessory to your device, select the accessory and Default profile.
To set the device to answer phone calls automatically after 5 seconds when an accessory is attached, select Automatic answer > On . If the ringing type is set to Beep once or Silent in the selected profile, automatic answering is disabled.
To illuminate the device while it is attached to an accessory, select Lights > On .
The available options may vary depending on the accessory.