I am looking into putting a set of 06-07 wrx limited leather heated seats into my usdm 03 wrx sedan. Now I don't know if this is a plug and play kind of thing. I have been reading that possibly can get the oem harness for it to work. But where does the own harness plug into and I did see a couple of people saying window switches might need to be swapped to. Where can I check to see if I can even plug the new harness in? Thanks in advance. Also if anyone has this harness and willing to part ways with it that would be awesome.