Just a final note to let you all know my problems are solved!! I have a SWR of 1.2 and no probs powering the Connex 4600 Turbo off of the dash terminals.

Thanks jujuman for your post about grounding the antenna behind the cab. That got me thinking...I mounted it to the top of the cab using the same bolts that hold the faring down and got a great ground directly to the roof.

Thanks Estnhillbilly for your post about the banana plugs they work great.