PA-22 TRI-PACER PARTS CATALOG 1 4 13 22 23 2 21 20 15 3 6 8 25 24 18 17 19 27 26 11 14 10 5 12 9 16 7 Figure 61. Piper Radio Installation AutoNav PRC-3 and Super Homer VHT-4 AutoNav PRC-3 and PTR-1 191