Help With Wiring Question:

[Jraldi]

Was considering building a portable 12v powered boombox and have been contemplating different routes to take. I definitely want to be able to have two audio source options available: Bluetooth and also 3.5mm input for an alternate. My question is: Can I wire it up the following way shown below or will it not work? Only one audio source will be used at a time of course.

http://imageshack.com/a/img661/557/dWrtiL.jpg

 

[rayma]

I definitely want to be able to have two audio source options available:

Damage may be caused if you just connect two different sources together with the Y cable.
You could use resistors to form a simple mixer, and there are some types of RCA connectors that allow resistors to be connected inside.

Why not have a switch on the boombox to select either source, and plug each source into the boombox separately?

 

[Jraldi]

Still confused.. So your saying if I'm only feeding one source signal at a time it will be fine? The bluetooth module will be on a switch so I could shut it off prior to connecting a cable jack from a phone.

 

[rayma]

Still confused.. So your saying if I'm only feeding one source signal at a time it will be fine? The bluetooth module will be on a switch so I could shut it off prior to connecting a cable jack from a phone.

If you're certain only one source would be plugged in at a time, it would be ok, but just turning the other one off is not good enough.
Why have the Y connector? Just plug in either source's cable one at a time.

 

[gmphadte]

Input switching box may be available. Atleast, it is available here.

Gajanan Phadte

Edit: like this http://www.dx.com/p/3-input-1-output-tv-switch-box-w-composite-av-rca-cable-black-164934