You need:
• wires (red & black 22 gauge)
• wire cutter/stripper → like this one on amazon (it doesn't look like radioshack has a decent one)
• sumitomo male connectors (x2) → Sumitomo 110 2 position, like these
• butt connector (x2) → stuff like this is at radioshack
• male quick connectors (x2) → something like this will do
• piggyback connectors (x2) → like these
• switch → for example
• soldering iron & solder → also at radioshack
• electrical tape (to make sure everything is weather proof)
• LED's (x2) → lights to replace blinkers— like this (you need 1156)*
Steps (depending on your skill level it should take around an hour total):
1) open up the front of the scooter (three screws— one in the front two in the back at the top)
2) disconnect the charger
3) put the piggyback connector on
4) reconnect the charger
5) connect the 2 male quick connectors to about 4in. of red and 6 in. black wire
6) solder the red wire to the switch
7) solder another 4in. of red wire out of the switch

9) use the butt connector to connect all the red wires together, and then again for the black wires
10) solder the end of the wires into the sumitomo male connectors
11) use the electric tape to wrap all the connections (especially the butt connector!)
12) to install the switch you'll need to cut a hole into the back panel of the scooter. I put mine down and to the left of the charger, it is invisible unless you crouch down. Use the washer on the back of the switch to trace a circle and cut it out. I recommend cutting it a little small and then filing it so that you have a tight fit.
13) install the switch & connect it to the piggyback connector and deadlights (& test it), then close the front of the scooter.
The big benefit of this system is that your warranty is still valid. The big drawback is that you have to use the switch because the line is always on, even if you scooter has no key in the ignition. Luckily, LED's don't draw too much power, so you have a little breathing room if you forget about the lights for a few hours (like I have).
*if you use anything but LED's you'll almost definitely blow the 1A fuse.