I'm in the process of buying an 04 STi that does not come with a stereo. I want to just get a stock headunit and put that in there along with some stock speakers. I don't have the greatest ears for music so stock is good enough for me. My question is, is the headunit for the STi specific to the STi or is it the same for both the wrx and the STi. I'm only confused because wrx's have the green backlighting on everything and the STi has the red for the backlighting. Also are the headunits for the 04's the same for the 05's? Last but not least, anyone selling one that will fit my needs? Maybe speakers too?