Charge and external storage at the same time

[aviator703]

I'm putting an iPad 1 in the dash of my car and need to be able to charge it and change external storage (such as a USB) without changing the cables, is there some sort of splitter cable that will allow me to do this?

 

[goofy8275]

Would this be something you could use?

 

[aviator703]

Perfect, cheers!
Do you have a link for it?