I am going to buy two speakers like these:
http://www.amazon.com/gp/product/B00HFG7AG4/ref=ox_sc_imb_mini_detail?ie=UTF8&psc=1&smid=A385A0XNQBW8HY
They will be wired from an AV cord's left and right audio. One speaker each. Is there a way to control the volume of those speakers? Also how...