I use a "Little Giant" highly recommended. USA made, no worry about upgrades!
https://www.littlegiantladders.com/products/dark-horse?model=15147-001
Absolutely necessary to mount/adjust the roof antennae for the FM tuner.
https://www.littlegiantladders.com/products/dark-horse?model=15147-001
Absolutely necessary to mount/adjust the roof antennae for the FM tuner.