I want do ipad controller, but there have have somtehing wrong? Answered

I want do ipad controller, but there have have somtehing wrong

after i saw   https://www.instructables.com/id/Simple-Ipod-Controller/

and i use ipod touch to test , there have have somtehing wrong .
when i connect podbreakout my ipod touch, after took off it have sound normally.

and i want to  ask   how to use podbreakout charging iPad? not charging all the time.
I want use button to turn on/off charging iPad. who can help me?

Here is my new 
red circle is 500 ohm , blue A contro Play/Pause, blue B contro Next music , blue C contro volUp , blue d contro volDown