My used 1984 Expedition also came pre-wired but w/o a generator, so I found an inexpensive used Soubitez on e-Bay. It has worked well for about 15 years. That included a stretch of 2 or 3 years in the rotation of my commuter bikes. My morning commute was often before sunrise, so it was well used. Early on, I picked up a complete, un-used Sanyo outfit for cheap at a Seattle swap meet. Being French, I expected the Soubitez to fail and I would then install the Sanyo. But the only failure was the latch mechanism that holds it off the tread. Soubitez is propped off with a removable bolt now and the Sanyo sleeps in my parts drawer waiting a call to service. Don