Crimped open barrel male pin (ref Sect 5-21 for instructions) to red 14ga wire for GAP 26 Pitot heater power. After inserting into Pin #4 location in Connector P400 at Wing root (ref Sect 19-02 Fig 1 and Detail A ), routed outboard to Pitot mast. Stayed far away from GMU 22 magnetometer as well as aileron pushrod. Next, installed the monopole antenna ADS-B/Transponder at bottom rear of tail. I recently considered changing to a blade antenna, but the extra $130 cost ( 6x !) seemed excessive for the reduced drag. Most builders install the monopole, but Vans provided the extra holes in this area for a blade antenna. So I decided to use the monopole and simply "plug" those unused holes (Vans prod support confirmed). I used small alum pieces placed with lots of J-B Weld to fill the holes. This can be sanded flush on exterior. I also placed ~ 2" piece on extra blade antenna holes in mid-fuselage with same epoxy.
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| one of these red wires is the 14ga power wire added to C400P |
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| routed toward upper air line to "stay away" from magnetometer |
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| ADS-B monopole antenna installed. Plugged extra holes with epoxy and alum pieces |
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| ADS-B/transponder antenna. 2 holes filed w/ epoxy fore/aft, too |
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| alum piece epoxied on second, unused Blade antenna holes. Blue tape will be removed once cured |
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| bottom fuselage...epoxy filling holes flush |