Xbox 360 & PC to one set of speakers.?

-Hi, can any of you recommend an audio switch which will allow me to run my Xbox 360 sound, and PC sound through my little Logitech 2.1 setup?



The Xbox 360 audio is output through RCA (but can be 3.5mm jack as I have an adapter which takes the RCA and changes to female 3.5mm jack), I use the 3.5mm output on the PC too, and my little 2.1 speaker system is 3.5mm male jack.



I don't have a huge budget :-(



Thank you kindly for your help!