Here's how I did an HF Mobile Install In A Ram 2500! I also show you where I bonded the truck to get a better more efficient ground plane. Most of what is used in this HF Mobile Install is from my last vehicle. This project ended up being easier than I had originally anticipated. The items I installed are the Yaesu FT-891 and the ATAS 120A. I have heard people trash talk the ATAS 120A, but I have been told the key to the ATAS 120A is grounding.