Start building a 5.1-channel surround sound system by adding the Rosen DP-1011 preamp output harness to your Rosen H- or N-Series navigation receiver. The RCA-style outputs enable you to connect the receiver to a full set of external amplifiers. The harness features front stereo, rear stereo, center, and mono subwoofer RCA preamp outputs. It also includes an amplifier turn-on lead and a coaxial digital cable that connects to an external 5.1-channel processor. Warranty: 30 days.