Variometer installation

Thank you. I already have an antenna in place. I've read, over and
over, that fuselage mounted probes (particularly those mounted aft of
the wing - which, of course, is pretty much the only pace I'm going to
be able to put it) really stink compared to those on the tail. Shall
I infer from your comments that a ****ty TE probe is better than none
at all? Let me tell you that the intended purpose is for fun flying
in the vicinity of the airfield. There will be no cross-country to
speak of...mainly climbing back up to play around a bit. Mostly I
want this audio vario so I can generally tell up from down while
looking out of the cockpit.