There are more steps for replacing the radio in 2003 Dakota then the olders models
1.Remove kick plate 3-torks screws
2.Remove 2 screws
3.Remove fuse box cover inside is 1 screw
4.Remove 3 screws above speedometer
5.From there just clips holding it in place
6.4 screws holding radio in place

You need to get than antenna extension cable the stock clips in different
Suggest you get the harness
Installation takes 20-30 mins