No idea what the white wire is but I'd guess it isn't needed. DO NOT JAM THE WIRE IN WITH THE RADIO FUSE!!! That is such a terrible idea. Instead, get an add-a-circuit and add it to whichever "mode" you want (On all the time, on with ignition, on with ACC, ect). The black wire gets grounded.
[URL="http://www.jeepforum.com/forum/f22/yellowtail-build-1262933/"][COLOR="Yellow"]The Yellowtail Build[/COLOR][/URL]
[QUOTE=Jeremy Clarkson - Top Gear Botswana Special]Why don't all cars have no doors? When I come to power I'm going to make it a rule because this is just better.[/QUOTE]