I bought an old beat up 2003 dodge ram 2500 5.9l Cummins Diesel. Since I bought it the cargo, CHMSL and stereo speakers haven't been working. I read on another forums old post that a guy had all the same problem on his 98 ram and fixed it by fixing the rusty ground wires under the hood on the driver's side by the engine. Was wondering if that could be the cause and where i would find these wires on my 03 diesel. Or if there is anything else that might be causing it. Thanks!