I was wondering, and I havent found anything about this, and wanted to see if anyone knows . . . does anyone have any clue what this 4 pin connector on the TiVo Series 3 652160 model is for? There's never been anything connected to it but I was wondering could it be for another fan? When it was unplugged I put a 4 pin plug on there from an Intel fan just to see if it would fit and it does, but I'm not going to turn it on and fry my TiVo. Also TiVo is clueless about it or they just dont want to tell me. Any ideas?