User manual ALPINE MRV-F352

[. . . ] Never connect left and right channel speaker cables to each other or to the vehicle body. 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. [. . . ] Your Alpine dealer carries various noise suppressors, contact them for further information. ⷠYour Alpine dealer knows best about noise prevention measures so consult your dealer for further information. 1 RCA Subwoofer Input Jacks (CH5) 2 , 3 RCA Input Jacks (CH3/4), (CH1/2) Connect these jacks to the line out leads on your head unit using RCA extension cables (sold separately). Be sure to observe correct channel connections; Left to Left, Right to Right, Front to Front and Rear to Rear. NOTE: When the CH1 and CH3 are used, the unit automatically enters the mono mode, and when CH1 ­ CH4 are used, the unit enters the stereo mode. 4 Subwoofer Output Terminals (CH5) 5 , 6 Speaker Output Terminals (CH1/2) , (CH3/4) The MRV-F352 has two sets of speaker outputs. 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 ground. NOTE: Do not connect speaker leads together or to chassis ground. 7 Battery Lead Terminal 8 Remote Turn-on Lead Terminal 9 Ground Lead Terminal - Insulation Tube a Battery Lead (Yellow) (Sold Separately) Be sure to add a 50 amp fuse (or two 25A 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. B 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. C 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. Cautions on wire lead connections In case of using the lead (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. Recommendable wire size used for the unit is AWG7 ­ AWG18. ⷠIf the wire size used is unknown, ask to the shop you get the unit, service shop, Alpine Service Center, etc. [. . . ] Using this connection method, the MRVF352 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-F352 turn-on lead. This switch will then be used to turn on (and off) the MRV-F352. Therefore, the switch should be mounted so that is accessible by the driver. [. . . ]