The Bendix T12 ADF was removed in 1993 and a King KR-87 ADF was installed. The KX-170 radios were removed in 1994 and new KX-155 NAV/COMS and II Morrow 2001 GPS were installed.
Beechcraft V35A panel.
Looks like the black krinkle paint was the first to go.
Beechcraft V35A Old panel.
This is the start of 20 years of avionics upgrades.