This thread helped me change my fluid easily
I used a "measured funnel". It was at walmart for less than 5 bucks, and it worked great.
http://www.walmart.com/ip/FloTool-Me...l-7pc/16889147
It clips into a piece that almost looks like it was made for this funnel, on the electric fan. The hose curves right into the fill plug.
As for now a 4runner differential drain plug has been tested and works as a replacement drain plug with a built in magnet.