AM/FM Stereo Cassette Player (120-1909) Electrical Connections Faxback Doc. # 33221 It is recommended that you make all electrical connections before installing the unit. Although installation is relatively simple, it does require some mechanical and electrical ability. Incorrect installation could damage both the unit and the vehicle's electrical system. If you have any doubts about your ability, have the unit installed by a qualified professional. NOTE: This unit is designed for 12-volt DC negative ground operation. If your vehicle or boat does not provide 12-volts negative ground, you you need a voltage inverter such as Radio Shack's 22-129. 1. Connect wires from the 5-pin plug to speakers and power source (12 volts DC). NOTE: The power source must be +12 volts DC; the best location to pick up this voltage would be at the fuse block of your vehicle --an accessory terminal. 2. Connect the antenna cable from your vehicle's antenna to the connector on the back of the Radio/Player. 3. Connect the red/white wire (with in-line fuse holder) to a constant source of 12 volt DC power. This connection must be made to a 12-volt source that is always "hot" (i.e., not switched on by the ignition). This lead provides the constant voltage needed to power the clock and memory. Make direct connection to either the + terminal on the battery or the incoming 12-volt DC line to the fuse block. 4. Connect the single black wire from the back of the Radio/Tape Player to a chassis ground point on your vehicle. This can be under a screw-head which is securely fastened to the metal frame of the vehicle. 5. The orange wire is a switched power lead to be used with an external amplifier (such as Radio Shack Cat. No. 12-1866) or an automatic antenna. An accessory connected to this power lead will turn on and off with the 12-1909. SPECIAL NOTE: Be sure you keep right and left -- speaker terminal leads separated. Never interchange these wires. Each speaker must have a separate -- terminal connection. Never connect the -- terminals of the speaker to a common ground point, or to the chassis ground. (IR-06/05/96)