The Mooney - Avionics
So I'm about to fly a 1966 Mooney M20E cross-country, from 0A7 to KSMO (by way of KSUS and KPPQ to see family). It's going to be a helluva trip. A friend is flying commercially into Lambert to meet me for the longest portions of the trek. The plane has been upgraded periodically, with the current avionics installed in the 1980s (two Terra TX720s, two Terra TN200s, two Terra Tri-Nav digital CDIs, a Terra TMA-230D audio panel) and early 2000s (S-Tec 30 autopilot with altitude hold; Apollo GX55 en route IFR GPS; GPSS module; WX-1000 stormscope). (There's also a PM2000 stereo 4-place intercom, and an EI-E1 single probe EGT display.) Coming with us will be a new-to-me Stratus 2 (after flying with the AHRS and synthetic vision on ForeFlight courtesy the GTX-345 in the Arrow, I'm spoiled and want the "backup glass cockpit" with us - especially flying >1700nm in a 51 year old steam cockpit). Also, tunes. The PM2000 has an audio input jack and handles soft-mute