Try like this.

Solder on the wire. Put the wire on the place you need it to stick.
Put the soldering iron on the wire and the place you want it to stay for 1½ sek. Just enough to make the solder and the "soldering place" to bound.
Remove iron and if it sticks and you cant move it with a littelpoke be happy.

Even if it is not so perfect as you want it to be, dont try and improve it.