I ran my coax from the rear ladder ( on left side ) mirror mount ATAS120 ant. along the left frame to where the rear factory wiring harness from dash exited cabin. It is located under the drivers door jam tread at the rear of door opening. I have operated a FT100D, FT450D and presently using a FT991 on HF, UHF and VHF with no issues.
I have logged Europe, N. Africa, Asia, Australia, North/South America and South Pacific Islands with the above setup.
RETIRED / New Mexico
KZ5PZ - EXTRA -
Viet combat vet USNR
DAV, VFW, CCL. SASS