*Note: In 2004 Dodge offered two different amplifiers for different trim packages. The 70-6512 harness is designed for the SRT10 trim package without the hands-free capable option. The way to tell if the vehicle has a hands-free option is to look at the rear view mirror and see if it has an icon of a telephone on it. If there is no icon this harness will work. On the SRT-10 trim package with the hands free capable option and the 2004 Dodge Ram non-SRT trim packages please refer to the 70-6510 amplifier bypass harness.