I bought a new fob case online a few weeks back and finally got down to swapping out the guts of the original one for the new case. I downloaded the PDF for this project and they were perfect, thanks so much. Now for the not great news. I got to see first hand the poor quality of the replacement after I had opened the original fob. There are some minor issues of where material had leaked in the molding process (nothing a sharp exacto won't clean up) however, there were some difference in the interior, one of which is significant. I'm posting a picture below so you can see the issue I found. The original fob has a white plastic piece that slides over a post and is used to hold the small transponder in the upper corner of the fob. The replacement fob had a mold "T" form in this spot and therefore the transponder holder will not fit. I used a dremel to cut the new one to resemble the original but also found it was slight in the wrong spot. In addition, I noticed that that there are two molded shapes in the original fob to keep the transponder from shifting side to side, this is not in the new fob. I understand that you can glue the transponder to the fob itself but was reluctant to go that route. I getting increasingly irritated at the poor quality of the new case. I finally decided to put everything back in the original one and go find a better fob.

So if you decided to buy a fob off Ebay or some other site, be sure to see pictures of the inside of the case if you can. Otherwise be prepared to do a bit of work to make it work.

Update: The eBay seller has refunded my money for this defective product.