User manual ALPINE MRV-1002

[. . . ] This unit is designed for 12 VDC, negative ground systems. Make sure that your vehicle has this type of electrical system before connecting the power cable. When making connections to the car's electrical system, be aware of the factory installed components (e. Do not tap into these leads to provide power for this unit. [. . . ] Be sure to observe correct speaker output connections and phasing. Do not use the speaker (­) terminals as a common lead between the left and right channels. Do not connect this lead to the vehicle's chassis. NOTE: Do not connect speaker leads together or to chassis ground. 3 Battery Lead (Yellow) (Sold Separately) Be sure to add a 5 60 amp fuse (or two 30A fuses in parallel) as close as possible to the battery's positive (+) terminal. This fuse will protect your vehicle's electrical system in case of a short circuit. If you need to extend this lead, the wire gauge should be 8 AWG or larger. 20 amp fuse 4 Remote Turn-On Lead (Blue/White) (Sold Separately) Connect this lead to the remote turn-on or power antenna (positive trigger, (+) 12V only) lead of your head unit. 5 Ground Lead (Black) (Sold Separately) Connect this lead securely to a clean, bare metal spot on the vehicle's chassis. Verify this point to be a true ground by checking for continuity between that point and the negative (­) terminal of the vehicle's battery. Ground all your audio components to the same point on the chassis to prevent ground loops. 6 Insulation Tube 7 Speaker Input Leads These leads are input leads for use with head units not equipped with preamp outputs. When not using the RCA Line Input connectors, you should connect these wires to the speaker output leads of your head unit. The MRV-1002/MRVT502/MRV-T302 accepts input from high power or standard power head units. 8 Left Speaker 9 Connect the Ground Lead of the head unit. - Right Speaker a White (+) b Black (­) c Gray (+) NOTE: In case of using the speaker input cord, noises may occur at power off depending on the head unit connected. If you feel uneasy about the noises, add a SPST switch to the connection. 5) Cautions on wire lead connections In case of using the leads (speaker/power supply cord) purchased at the market, use the hexagon screws and the hexagon wrench included as the accessory to make connection easier. Improper handling may cause troubles, so make the connections correctly by referring to the description shown below. A special care will be necessary for the connections using the hexagon screws, so we recommend you to ask the connection for your dealer. If the wire size used is unknown, ask to the shop you get the unit, service shop, Alpine Service Center, etc. ) of the wire leads by about 7 ­ 10mm (9/32" ­ 3/ 8") from the lead end to exposure the conduction leads. [. . . ] Using this connection method, the MRV-1002/MRV-T502/MRV-T302 will turn on and stay on as long as the ignition switch is on. If this is objectionable, a SPST (Single Pole, Single Throw) switch, in addition to the 3A fuse mentioned above, may be installed in-line on the MRV-1002/MRV-T502/MRV-T302 turnon lead. This switch will then be used to turn on (and off) the MRV-1002/MRV-T502/MRV-T302. Therefore, the switch should be mounted so that is accessible by the driver. [. . . ]