ill try n see if i can find some old reciepts as it was nearly 2 yrs ago, not sure how much, i got mine from subaru, as i didnt know any car clubs to ask, and cos i didnt know what was wrong they had the car and let me know what it was, then it went again but cos i knew bout it i disconnected it then went to subaru n tell them to fixed as under warrenty!!!! could try ebay, but second hand and it mite not work, and there are dif types something to do with coloured stickers!!! sorry cant be of much more help
steve