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This iDatalink HRN-DSP-CH3 harness connects a Rockford Fosgate DSR1 digital signal processor (sold separately) to your Chrysler, Dodge, Fiat, Jeep, or Ram vehicle without a factory amp, so you can add digital signal processing as well as an aftermarket amp without losing important features and functions. This T-harness connects to the factory radio's harness, supplying audio and databus signals to the DSR1's Maestro interface without any wire splicing.
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