i have same truck 2003 heavt duty 2500 with hemi ,guess i'm lucky cause it is very quiet on the inside no road noise or squeaks rattles or nothing, but i do have one of thr first 2002 mayor that were sold i bought it in 2001.and it my friend sounds like the window is down all the way, imean there is a lot of different noises in that truck dealer helped some but didn't correct all issues .so i leave the 1500 parked mostly and drive the 2500 it is a sweet truck.even with tyhe noise in a lot of the rams they are still the best truck on the road i think .i wish you luck. long live the ram