I am in the same boat Fishta, but I am using the 3.5mm jack and the wiring schematic from the Beosystem3 manual I have says use terminals 3,4,5 on a 5 terminal IR (corresponding Green 3, yellow 4, brown 5) which goes against the 1 yellow ,3 green,5 brown termination pattern that was suggested. This IR is for a projector set up as well. I always planned on using a TRS 3.5mm jack (Tip being green, ring yellow, and Sleeve brown) I figured the color codes stay the same (ie. Yellow is always +5V, Green IR-Data etc.) So armed with my knowledge I was going to set up like the manual said with my jack until I came across the other termination pattern for the IR side and now am slightly concerned which to use? Any ideas or preferably definite answers thanks