I did an initial check on the dash wiring on my 72 Malibu and noticed a device that is 1 3/4" long by 1" tall by 3/4" wide and has two male spade connecters on it attached to the wiring harness. The top is broken and shows what looks like a coil of sorts inside and a broken copper piece of metal. Is this a dash harness circuit breaker? If so, what is it called so I can purchase a replacement. Thanks all for the help.