Chillywilly, My firebird was not GLUED together, just plastic locking type clamps that had to be carefully opened to allow me to separate the body halves. You still have to get the new antenna wire down the tube of the fuselage.
Here I would stick a verry small wire, preferably telephone wire, because it is thin, and single strand (stiff).
Pull your new antenna wire through that tube with that really thin wire, then solder it into the antenna connection of the receiver/servo/esc, very carefully because of heat, and the complexity of that printed circuit board being all three, receiver, servo, and motor control. My Firebird XL has 25 cm hanging out the back end, but about 54 cm inside the plane. That wire is very thin. telephone wire is thicker in gauge. My antenna is loose in the fuselage tube, which means it is not binding on the push rods at all.[img]i/expressions/face-icon-small-smile.gif[/img]
GOOD LUCK! I hope I am not to late with this post.[img]i/expressions/face-icon-small-cool.gif[/img]