Simple.
Got a small toggle switch from Radio Shack.
Wired it in series with the antenna control wire wire (blue?) from the hu. Drilled a hole for the switch in the top wall of the console which is just below the hu.

With the switch in the 'on' position, normal operation.
Flip the switch to 'off' and the system thinks you turned off the hu and retracts the antenna.

AL


Red '98 SVT E0 3098/6535
KKM, Elizabethan EGR Plate, TH fix
OMP front brace
Hightower rear brace
DMD
B&M with reverse lockout disabled and centering spring removed
Mobil 1 oil and trans fluid
A6 Side Markers, Optima orange, Horn recontent
Painted Sail Panels
VooDoo Knob and pedals, RogerR deadpedal
Blau Houston & CD changer
Cup holders that work
Donnelly mirror
BAT Sill Plates
and a Bullitt fuel door