Stereo wire to acc switch. Help.

[Holdmybeer]

To make this work....
1) connect everything normally and skip the switch.
2) once working as installed, confirm 12v at rocker switch input with key off
3) on rocker switch output, connect to both yellow and red.
*both wires need 12v for the radio to work.
4) add fuse rated at 10A max to rocker switch input - between power source and switch.

Test..... rocker off key off = no music
Rocker off key on or acc = music.
Rocker on key off = music
Key on or acc music...... switch rocker to on...... key to off music should continue.

Done....... disclaimer.... I am not saying this is a good idea. 2 power sources could cause electrical issues. Back feeding power to other sources or multiple ground loops can cause shorts and in some cases resistive loads become heaters and can cause fire. Leaving the rocker switch on 100% WILL KILL YOUR BATTERY. Your amps remote turn on wire is powered through the radio. All of this will be powered.