"Warmed up after just a couple of days" probably means your thermostat is set too low ;-)
Unless you're performing hifi pagan rituals, then you just don't have to burn in wire - it transports electrons just fine the instant it makes a connection.
While you're being careful about the wire from the back of your gear, I hope you got a chance to ponder what happens to all those poor electrons on the "N"-mile journey from the generator. Wonder if you can budget a step-by-step upgrade for all that wire, too?