Thank you all that have replied.....
You are hearing normal atmospheric band noise.
I would hope this was it but still not sure, I guess time will tell.
The Sun has been pretty active this last week (Quietening down now) with a few "M" class flares one of which (at least) produced a burst of noise caught by an amateur astronomer on 21 and 28 MHz.http://spaceweather.com/
A friend said the same to me but today it seemed worse for noise.
Hash could also be your truck`s onboard computer.
That would be one of the only things/wires that does not have any split beads mix31 on it. I will check it with a am\fm\sw sniffer and see if it is the problem, thanks....
If your rigs are isolated from the truck ground, you may have ground loops through them. There is an easy check--just disconnect the antenna and the power harness from the second rig. If the noise lessens or disappears, then you've found your answer.
Another thing that you can check is the vehicle exhaust system. Is that bonded to the vehicle frame? If not, do so. That may lessen the noise too.
My HF radio is grounded but now that you mention it I am not sure about the 2m/440m, I will try your suggestion and see what happends.