So I have the old blitzsafe or something like that ipod connection and it doesn't charge the iphone or ipod. I saw this :http://www.pac-audio.com/productDeta...&CategoryID=36

Does this just plug into the ipod cord (the one that doesn't charge), and then into the ipod/iphone and it will charge it? I emailed them but didn't get a response back and I wanna order this today. Anyone use this before or has any experience with it?