Hello, i have this keyboard >pic related i use it mainly

>>1028676
no aux on the back?

>>1028676
If it has a discrete amplifier IC you can tap into the output of the main IC.

>>1028693
no, no aux, just power input and mic

>>1028705
ill keep this in mind, i havent looked inside yet

you might find, a better keyboard (good consumer/semi-pro Yamaha) make a world of difference, you can find 2nd hand ones cheap. If not, a microphone + whatever else you were planning on using anyway (amp/speakers, or PC, whatever) - microphone can use PC if your amp had no mic imput, or use small mixer, if available (better)

That thing (if Pic) syas in net has MIDI? If PC, get a MIDI7USB box (again, cheap), connect the two, any MIDI software - software becomes the instrument, can choose output sounds like, keyboard is then just mechanical input for the program. Again, better keyboard (dynamic taste / hammer effect keys /etc.) make a world of difference, but whatever.

Or go hacking with a soldering iron, as >>1028705 - But a mic be easiest, its what theyre for.

>>1028676
>tldr
Thanks OP, your 1 sentence post would have taken up too much time for me to read. But on a serious note, post a picture of the backside, typically that's where you would want to connect those types of cords

Open the case and look on the motherboard for a blank area with solder points labelled aux, ext or whatever. The same board is probably used in multiple models just with some additions and maybe different software. Not many manufacturers would be retarded enough not to design in the capability of an output.

Just connect the cables going to the speakers to a stereo jack, or two mono jacks and voila.

>>1028676
The simplest way would be to open it up and connect a female jack to the wires going to the speakers. Either use a switch or one of those "connection sensing" vonnectors. This would in effect work as a headset connector.

>>1028837
Followup: while simply connecting it in parallel would work, the too low impedance that is the result of running both things at once will wear out the amplifier over time. Also, hearing both at the same time will sound like shit.

>>1028676
>open it up
and
>find the op-amp for the speakers
>split the op-amp input into a 3.5mm jack output
or
>split the speakers input into a 3.5mm jack output with a resistor in series