Try this, here is some red #6.

 http://cgi.ebay.com/ebaymotors/6-awg-Marine-SAE-Battery-Cable-Power-Wire-Red-ft_W0QQitemZ4552148660QQcategoryZ26449QQrdZ1QQcmdZViewItem

I have purchased a lot of different colored wire from these guys. Email
them and ask about #6 yellow.

Mark

Michael Elliott wrote:

> I need some 6 gauge booster cable wire. Not an assembled booster cable
> with clamps, just the cable itself. About 50 feet. Yellow. Anyone know a
> vendor for stuff like that?
>
> --
> Hoping the spirit of John Wallace is with you, I remain
>
> Mike "Rocket J Squirrel" Elliott
> 71 Type 2: the Wonderbus
> 84 Westfalia: Mellow Yellow ("The Electrical Banana")
> KG6RCR
>