Hello together, would be great if you have suggestions, ideas and above all answers to my questions.Vehicle: R129.060 1990er 300 SL without BOSE, without sound system, but with Becker Traffic ProProject: Making and retrofitting the OEM BOSE wire harness from the model maintenance with improvements Can someone please confirm these line colors? Especially those marked with “?”.Radio to amplifier: right front (+): yellow right front (-): yellow/brown left front (+): blue left front (-): blue/brownStrengthener to speaker: right front (+): orange (?) right front (-): brown/orange (?) left front (+): green left front (-): brown/green right rear (+): white right rear (-): brown/white left rear (+): pink (?) left rear (-): brown/pink (?) subwoofer (+): gray subwoofer (-) left front (+): brown/grey Does that mean that at the R129 with BOSE all seven speakers with the signals “right front” and “left front” are not used by the radio?