I have a set of speakers which support 4.1. However, it takes a front and rear input. For this reason, all I've been able to use is 2.1. I'm wondering if I can use a 2 female to 1 male to fix this. See here: http://www.pigselectronics.com/products/CBMS2FM.htm The idea is this - I connect the rear and front input 1/8" cables to my speakers. Then I take this two cables and plug them into the female ends. The male end goes into the line-in/headphone jack as normal. Will this work to give me 4.1 sound? Thanks in advance.