Electrical gurus,
    I have just install my stock Hiedelburg radio I bought off the list.  I
thought while installing, I would be brilliant, and hook up the hot wire to
the little gray/black wire that comes out of the ignition switch, so the
radio will be on until I pull the key.  Works great.

However, with these stock radios, they are designed for 12v supply at all
times, unlike aftermarket radios where there is a 12v supply constant for
memory, and a key-on type power, thus allowing the radio to shut off when
ignition is off, and maintaining station presets, time, etc.

I really want the radio to maintain the presets, and go off with the key.
Any ideas?

TIA
Adam Puzerewski
81 westy
74 beetle
86 cabrio
Vanagon Partsmobiles