PSP Speaker and LED's

[P_S_P]

Hi Guys, i would like to connect 2 extra speakers and some sound reactive led lights to my Sony PSP 2000, to do this i just have to solder wires for leds and extra speakers directly to one of the original speakersthat i find in the PSP , is that right?
Will it work?
i've reppresented the connections in this pic , check it plz =D
thanks )

http://i34.tinypic.com/dm9p3l.jpg

:D

 

[P_S_P]

plz tell me if i did it right