The ideal cable harness that dramatically simplifies the connection of additional devices to factory car radios. Especially our digital signal processors like the HELIX DSP or MATCH DSP get directly supplied with the four channel highlevel signal (speaker signal) and also with power from the car radio. An added benefit: It is not even a remote signal required for activating. It could not be easier! Can be used for the following devices: HELIX DSP, HELIX DSP PRO, HELIX P SIX DSP, MATCH DSP For car radios without ISO connectors an additional ISO-adaptor (PP-AC cable harness) is needed, which has to be connected between the ISO cable harness (PP-ISO) and the car radios. The needed ISO-adaptor can easily be found in our adaptor database.