Mix mono to stereo

[electronoobz]

so i made a mp3 amp and i already have a small guitar amp..

what i would like to do is:

mix my guitar amp to my mp3 amp

at first i thought of using a mixer but i want my mp3 to still have its stereo sound...

Is there a way to do it??

 

[CocaCola]

You generally mix before amplification, mix the mono signal to both sides of the stereo signal and then amplify the stereo signal that not contains the mono signal...

 

[electronoobz]

thanks Coke hahahha...

that's what i also think but for confirmation i asked it here...

anyway could you help me using a 5 pin earphone jack??

There is 3 on right and 2 on left.. Here's what i thought.. The sleeve goes to ground, the ring and tip to the ring and tip (what i mean is R and L) speakers and the other tip and ring bypass to the speakers (R and L) negative or is it ground???