Zend certified PHP/Magento developer

USB through VGA cable

We have an old VGA cable built into our wall. It isn’t used any more. But now I need a USB cable, but it is too much effort to build it into the wall. I got an idea to make two reductions USB to VGA, and pass the four USB lines through the VGA cable. Is it a bad idea? Why?

Edit: As bot has asked me, so let me clarify. Is there a problem with passing USB wires through an old VGA cable? Nobody sell this kind of “reduction” but there must be many old cables in walls in the world and this can make many lives easier 🙂