12 volts out when Engine Start

[Blaise]

hi,
I want my car stereo can power when the engine start, not when the panel lights turned-on.

in short I want the car stereo power when there is an engine acceleration.

with that wiring I can also top other wires for example my dc electric fan.

what are your ideas? suggestions?

 

[Blaise]

hi,

So, there is really a way to make this direct top connection, rather buying a delay relay(1 min) from an electronics store.

thanks.

 

[Blaise]

hi,
I'll get back soon a message when I'm done the things for my car.


thinking of it,
thank you

 

[static zap]

I got someone to build a circuit that sensed difference between - resting battery voltage and 14V when charging .
Has bonus , if alternator loses the battle , amplifier loads etc get removed ! (Get an ignition /side lights sense cables included in design -if overrides are needed ) Auto/Manual/Off ...
Not as easy to sense the old Ignition/charging lamp circuit any more!
(on Modern ECU/BCU-Digi Dash-board cars)