On May 1, 10:29*pm, "Michael A. Terrell"
wrote:
spamtrap1888 wrote:

The problem with both the RCA plug and the Motorola plug, compared to
other coaxial plugs, is that the hot lead makes contact before the
ground does.

* *That's because they were never intended to be plugged in to equipment
under power, due to leakage currents in the AC powered equipment. *There
is a Switchcraft version of the Phono/RCA that has a built in switch to
be used hot. It can be wired to short out the connector, until the plug
is inserted.

* *Explain want difference it would make on a car radio? *that is the
only application it was designed for.

A pin connected to a long metal rod, inserted into an amplifier input
-- what could possibly go wrong?