I had similar problems with my G25 shifter. The switches move with the shifter. The wires are very light gauge and fatigue at the plug. I was able to make it last a bit longer with regular blasts of contact cleaner then by applying a blob of solder at the plug.... but it was the beginning of the end without resorting to rewiring with new male plug ends - ended up upgrading instead.
Last edited: Oct 30, 2018