if i remember correctly, you can get to the antenna without having to open the fuse up. if you pull the clear tape off the bottom of the horizontal stabilizer, and give a little tug, the two tail wings will pull out. after you do that, you should be able to get ahold of the end of the antenna, since its ran through the hollow tail boom. the best way to attatch the extention would be to solder it. if you were to just wrap the two ends together, you may get glitches. easiest way to solder it would probalby be to get a little solder blob on the tip of the iron, and dip about 2 or 3mm of the end of the antenna in the solder blob, this should remove the thin plastic coating on the wire, and also tin the antenna. then, do the same thing to one of the ends of your extention peice, then solder the two together. if you're not comfortable with soldering, try bringing it in to a hobby shop, they'll usually do soldering for a really cheap price, maybe even free. if you cant find a hobby shop, bring it to a high school and find a science teacher, they may just have a soldering iron.

nick