Alright, so I play music from my laptop with only a 3.5 mm audio output hole into an amplifier with only rca left (white) and red (right) inputs. These then are transferred into speaker cable + and - slots for output into two passive bookshelf speakers with two posts in each speaker. What is the best way for me to turn the 3.5mm cable into two rca inputs for balanced stereo playback? I currently use a male 3.5mm plugged into my PC to female 3.5 mm and then a cable with male 3.5mm plugged into that female slot connection that is turned into two male rca into the amp