This is a very interesting thread/topic/situation, I have read all the posts. I do know drivers that drive with hearing aids but I also read that they will not work for your situation.Thats unforunate. I really can't offer any help/opinion, Now that I know hearing aids wont work.I am very interested in the outcome.Please continue tokeep us up to date. I would hope that if you can drive a car(and I'm not saying driving a car and truck are the same) That you could be able to drive a truck. I mean how much are people really hearing in their car with big blasting sterios or a benz with the window rolled up? How much do we really hear from outside of the truck with the engine noise, the stereo, the c.b. all going at the same time? Best of luck to you good Sir and I hope you get to realise your dream of driving the big trucks!