Robt.
Remove batteries from cycles.
Drill small hole in bottom of battery cover to feed wires through for + &- voltage. Next solder a seperate wire to each battery terminal for voltage (1 wire to one terminal for + voltage, other wire to other terminal for ground)
Run wires through game and tap into 5v. I tapped into the same harness that is powering my lcd scren.
Remove old diecast lightcycles and put on your office desk so you have something to look forward to win you get home.
I screwed 1 smal hole in the bottom of each lightcycle and used the standoff that was used with the diecast cycles to mount it to the plastic.
Finally super glue down the on/off button (the identity disc) so the cycle is illuminated all the time.

They look badass!

Super glue gel. I think that what its called

Yes, I had to use a splitter.
Make sure the splitter you buy from Kim has the middle wires for the 5v. The one I just received from him for my Backbox animation board, does not have the 5v line in it and I have to mod it. I noticed after installing his splitter my flipper buttons weren't illuminating like they were previously. His splitter is lacking the 5v wires.

Both of those are fine (CoinTaker & Pinballlife). I see the middle wire that is for the 5v on them.
The last one I got from Kimball did not have the 5v (center wire).

I know Kim very well and he made it for me in a pinch while I was on the way out to his house. He may have just left it off as he thought all I needed was the 12v. It's not a big deal to add the 5v wire in there and perhaps he overlooked it on mine. I'm not downplaying his...just saying. If you are buying one from him, be sure it has both voltages in the splitter. (5v & 12v).