Thank u all bros for ur appreciation
@ devilz_apprentice exactly used 1 wire for each left and right channel of port
@ Zubair530 As per my experience the AUX sound is much higher and improved, may be there is some problem in AUX of ur pre
@ devilz_apprentice Use the points i have marked as i also used same points for soldering the wires

@ OptimusSS I have heard that there is some sort of cable available with car electronics shops which are used for the CD Changer port of a device.
@ vickybhai AUX cable is availaible from any electric or electronics shop easily