I keep an assortment of sizes of that flexible wire on hand. Any circuit that's subject to movement or vibration gets wired with it, and the terminals get soldered- - - -not crimped. I learned that little trick about 60 years ago when Ford distributors had a nasty habit of breaking primary wire strands between the housing grommet and the points. We would diagnose the problem by disconnecting the vacuum advance. If the stutter on acceleration went away as the wires quit moving, that piece of primary wire got replaced. Apparently, Furd got a bad batch of wire at the factory, and a few million cars got equipped with it.

The scary part is that people like that parts department computer jockey reproduce!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!