User manual ALPINE MRV-F302

[. . . ] 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. [. . . ] If you add an optional noise suppressor, connect it as far away from the unit as possible. 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 , 2 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. 3 , 4 RCA Pre-out Jacks (CH1+3) , (CH2+4) 5 , 6 Speaker Output Terminals (CH1/2) , (CH3/4) The MRV-F302 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. A Battery Lead (Yellow) (Sold Separately) Be sure to add a 30 amp fuse 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. 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. ) of the wire leads by about 7 ­ 10mm (9/32" ­ 3/ 8") from the lead end to exposure the conduction leads. If length of the conduction leads with the cover removed is too short, incorrect connection may occur and this may cause operation failure or sound interruption. On the other hand, if the length is too long, an electrical short-circuit may occur. [. . . ] Therefore, the switch should be mounted so that is accessible by the driver. Make sure the switch is turned off when the vehicle is not running. Otherwise, the amplifier will remain on and drain the battery. 1 Remote Turn-On Lead 2 Power Antenna 3 Blue/White Wire 4 To other Alpine components' Remote Turn-On Leads 5 SPST Switch (optional) 6 Fuse (3A) 7 As close as possible to the vehicle's ignition tap 8 Ignition Source 4 -Channel System/Système à 4 canaux/Sistema de 4 canales 5 Use either RCA line level or speaker level inputs. [. . . ]