How to connect 3 audio inputs with a switch

audioswitcheswiring

I have 3 outputs from different audio sources via aux cable. I'm trying to combine them all into a box and have an easy way to change the audio source. If only one source is going to be used at a time how should I wire everything together?

Should I use a 3 position slide switch like this?

http://www.allelectronics.com/make-a-store/item/ssw-62/on-on-on-3-position-slide-switch/1.html

Or can I just wire them all together without a switch. Would there be interference that way since only 1 of the 3 audio sources will be on?

Best Answer

You need something like that but if you have stereo signals you need a 2 pole three way switch.

There will be two common pins you put one to the left input of the amplifier and one to the right input.

It will be similar to the schematic below (I could only find a 2 pole double throw switch but it will be similar for a 3 way but with more inputs).

The grounds for all the inputs and outputs are all connected together.

For the switch you may find a rotary switch is more easily available and easier to mount as it only needs a round hole in a panel.

For example:enter image description here Two pole 3 way switch

schematic

simulate this circuit – Schematic created using CircuitLab

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