Will this igniter work in a B5 S4??
 

My dad's igniter died in his 2000 S4 and we're trying to find one for less than the $350 the dealership wants. I found this headlight assembly on ebay with a good igniter out of a 99' A4 however i have no idea if it's compatible with the s4 even though it's the same bulb (ie: will it wire up to the s4's harness?). Can anyone help me out?
Thanks!
Chris

here are the pics from the auction:
http://i3.ebayimg.com/03/i/04/00/85/ad_1_b.JPG

http://i21.ebayimg.com/01/i/04/00/3f/f9_1_b.JPG