iPod cable - does it charge? V8V

[marknash99]

I've got the iPod cable in my MY2008 V8V. Plugged in an old iPod touch I have, it worked great but didn't charge it. That will be a right pain.

Is this just how it is or just some Apple products? I had the same lead in my Jag XF and it used to charge my iPod Nano