There were no wires on the underside, just one from each fin to the post on the canopy.
A couple of pointers for the next one Bob: watch the placement of the swastika on the tail. On the 219 it was in the bottom front corner of the fin. LW planes rarely, if ever, had the swastika span across the rudder except on prewar and very early war aircraft. Second, there's a technique to prevent the "silvering" you see on the decals (as evident on the left wing cross in the view from directly on top). If you have a glossy, clear finish (many people use Future floor wax but any hard gloss coat will do), paint that onto the model before you apply the decals. This will help the decals seat themselves better. Once the decals have set, paint on the matt varnish and you'll see that the decals look much better, like they've been painted on.
I like what you've done on this so far.