[. . . ] Continuous power supply permanente Stromversorgung alimentation continue alimentazione continua continu voeding power antenna (aerial) control Motorantennensteuerung commande d'antenne électrique comando dell'antenna elettrica elektrische antenne Switched power supply geschaltete Stromversorgung alimentation commutée alimentazione commutata geschakelde voeding ground (earth) Masse masse terra aarding This unit is designed for negative ground (earth) 12 V DC operation only. Before making connections, turn the car ignition off to avoid short circuits. [. . . ] A power antenna (aerial) without a relay box cannot be used with this unit. Memory hold connection When the yellow power supply lead is connected, power will always be supplied to the memory circuit even when the ignition switch is turned off. notes on speaker connection · Before connecting the speakers, turn the unit off. Use speakers with an impedance of 4 to 8 ohms, and with adequate power handling capacities to avoid its damage. Do not connect the speaker terminals to the car chassis, or connect the terminals of the right speakers with those of the left speaker. Do not connect the ground (earth) lead of this unit to the negative (­) terminal of the speaker. To avoid a malfunction, do not use the built-in speaker leads installed in your car if the unit shares a common negative (­) lead for the right and left speakers. note on connection If speaker is not connected correctly , "FAILURE" appears in the display. Check your car's auxiliary power connector diagram to make sure the connections match correctly. You may need to switch the positions of the red and yellow leads in the car stereo's power supply lead. [. . . ] Yellow Gelb Jaune Giallo Geel Yellow Gelb Jaune Giallo Geel switched power supply geschaltete Stromversorgung alimentation commutée alimentazione commutata geschakelde voeding Red Rot Rouge Rosso Rood Yellow Gelb Jaune Giallo Geel continuous power supply permanente Stromversorgung alimentation continue alimentazione continua continu voeding Before detaching the front panel, be sure to press . Engage part of the front panel with part of the unit, as illustrated, and push the left side into position until it clicks. [. . . ]