>
>
> Doesn't the radio forget its presets?
> Or are there two wires from the radio, one to the battery and one to the
> ign?
>
> Larry
> Chicagofrom

Using the DPDT (or SPDT ) switch there is power TO the switch via both outside
poles and power FROM the switch (to the radio) via the middle pole.   The
transfer of power is instantaneous and all info is retained by the radio.

John McLean