Xbox 360 Tekken 6 stick pcb help

[MDK]

Just got ahold of the wireless xbox 360 Tekken 6 stick and wanted to know if it's possible to convert this to a wired stick at all or attach a plug & play unit? I'm guessing it's not possible but have not found a definitive answer yet.

Had a peek inside and can't see an area from usb input apart from a header located in the battery compartment, still digging around but the only resources I've found at the moment are -

http://shoryuken.com/forum/index.php?threads/hori-tekken-6-stick.85264/page-9
http://shoryuken.com/forum/index.php?threads/hori-tekken-6-stick.85264/page-6
http://shoryuken.com/forum/index.php?threads/hori-tekken-6-stick.85264/page-8

Here are some pics are inners.

battery compartment


rear of compartment


PCB Header


360 guide


Main pcb front & back


http://img98.imageshack.us/img98/386/2mainpcbbackr.jpg

connected

[Ginsu Victim]

I just tossed some rechargeable batteries in there, but I'd love to see what you find out. I'm in the process of modding this thing as well.