Welcome Kymco Owners!
Trying to understand your request. 12 volt wire AT the ignition switch is red with white stripe. The ignition switch is not near the battery on the DT300i or any other bike that I know of. But the fat red wire from the + post on the battery goes to the starter relay then a smaller red wire goes to the 30 amp fuse on the fuse block above battery. Then from the other side of the fuse is that red wire with white stripe that goes to the ignition switch. That do it for ya?
What is "vcc wire?"
You must pull a cord from the front, there is no one at the battery. Hope the diagram can help you.