The Bit Ten and the Bit Ten D will allow you to integrate with your factory radio when adding a sound system in a similar way that the Bit One did. They do, however, make a few sacrifices. The Bit Ten will have 6 channels of input and only 5 channels of output, compared to the Bit One’s 8 channels in/out. It also will not come with the DRC, which allows you to control volume, fader, sub level and more from the dash. The Bit Ten D is the same as the Bit Ten, except it does come with the DRC.