At 06:22 PM 6/3/2012, Mike S wrote:
>I haven't seen anyone say to connect the radio power through the
>"key in" circuit. I have seen them advise connecting the "ignition
>sense" input to the radio there, but that only draws a few
>milliamps, on all the car stereos I've ever dealt with. It isn't
>used to power the radio, just signal it to turn on. The radio power
>lead would still go to a hefty DC source.

Ah...guess I'm still in the dark ages of car hi-fi.  I've heard the
new ones don't even make that humming noise* any more while they warm
up, before the station starts to come in. ;-)

*One of my favorite sounds as a 3-4 year old.  "Vibrator" was a very
interesting word to me then.  That and getting to push the buttons
after everything had warmed up.  Magic!**

**We were well off, I'll have you know.  Our car had a heater AND a
radio ('52 Ford Tudor).  Dad had to sell his Taylorcraft to keep me,
but they did buy a car.

Yrs,
d