Car dock power cable extension

[cubus]

So I need a much longer power cord for the Motorola Razr car dock (which is awesome). I noticed that the USB that came with it has a sticker showing not to plug it into the computer. So the question is, can I use a standard PC USB cable extension for that car dock?

Thanks.

 

[wmcnair]

I bought a extra long cable for my Razr. It is available on eBay.

Item #140559326458
Long Cable Rapid Car Charger For Casio G'zOne Commando (micro usb)