At 06:03 PM 10/5/2009, neil N wrote:
>Original wires ok at time of install. I even shrink wrapped them near
>the connector. But. I figure heat, unplugging/plugging in connector,

The shrink-wrap may have been a contributing factor.  Next time leave
as much unmodified length as possible where the wire comes out of the
connector, to maximize the stress relief.  All these pvc-insulated
wires have been living in a hot tough environment and gradually
become less and less tolerant of short-radius bends as the
plasticizer migrates away.

The tear in the shrink-wrap itself looks like mice to me.  Possible?

Yrs,
D