If you are adding a LOC for an amp to drive a sub, you are probably better off using the rear speaker wires, the last four wires shown on the listing. If you are adding an amp to drive all 4 channels, then of course, you need to convert both fronts and rears. The simple method is to tap directly into the appropriate wires and connect them to the line converter. If you do not want to tap the wires, you can purchase aftermarket wiring harnesses that are made to plug directly into your vehicle radio and/or the vehicle wiring harness. The Metra part number for a stock radio harness is 71-6502. It plugs into the radio and provides pigtail connections for power and speakers. There is, of course, a harness that plugs into the vehicle harness itself, allowing you to make the connections without any cutting or tapping of the original wiring.
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Most factory radios do not have RCA outs, but most will have a remote wire. Usually used for a power antenna option. Your remote wire from the amp could be hooked to the power antenna wire on the factory radio and it would work great for turning on the amp. As for the RCA inputs on your amp, you will not be able to use them without RCA outs on your factory deck. Although most amps offer a high level input alternative and will use the standard speaker level out on your factory deck. This means the rear channel speaker wires from your factory deck will be used to feed the signal to the amp. You will have to check the instructions and manufactorer recomendations for the amp you are trying to hook up. Have fun and good luck!
This is from the manual, please rate my help jhere, thanks. 2004 Dodge Durango Car Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Red/Blue Car Radio Accessory Switched 12v+ Wire: Red/White Car Radio Ground Wire: Black and Black/Light Green Car Radio Illumination Wire: Black/Yellow Car Stereo Dimmer Wire: Orange Car Stereo Antenna Trigger Wire: N/A Car Stereo Amp Trigger Wire: N/A Car Stereo Amplifier Location: N/A Car Audio Front Speakers Size: N/A Car Audio Front Speakers Location: N/A Left Front Speaker Positive Wire (+): Dark Green Left Front Speaker Negative Wire (-): Brown/Red Right Front Speaker Positive Wire (+): Brown/Yellow Right Front Speaker Negative Wire (-): Brown/Light Blue Car Audio Rear Speakers Size: N/A Car Audio Rear Speakers Location: N/A Left Rear Speaker Positive Wire (+): White Left Rear Speaker Negative Wire (-): Dark Blue/Red Right Rear Speaker Positive Wire (+): Brown/White Right Rear Speaker Negative Wire (-): Brown/Orange
Supplies needed: - 8 Gauge power wire (long enough to run from your battery to the amp placement) WITH an inline fuse!! - Depending on your stereo (if it has amp pre-outs or not) you will either need RCA cables (long enough to reach your amp from your stereo) OR a Line-Out converter AND RCA cables. - The power lead that connects to your "REMOTE" line on your stereo (long enough to reach from amp to stereo - usually blue) - A good ground wire ( long enough to reach a metal part of your car from the amp)
====================================================================== STEP 1: Find a spot to run the power wire from your battery - through your firewall and into your car - and then to your amp. (DO NOT CONNECT IT TO ANYTHING YET) STEP 2: Remove your car stereo and look to see if you have PRE-AMP outs (RCA connectors for an amp on the rear of the unit) A- if you do, GREAT.. proceed to step 3 B- if you don't.. you will need to get a LINE-OUT CONVERTER - what this does is converts the higher signals from your standard wires on your radio, to RCA style wires to connect to your amp. B2- you will also want to buy a wiring harness kit for your stereo, unless you want to hack away at your factory wires.. (not recommended) - connect the harness kit to your factory wire harness, wire in your leads for the output converter, and run the other end to your stereo.* *you will need to know which wires run to the speakers you plan to power with the amplifier B3 - once the converter is properly connected - proceed to step 3 STEP 3: Plug the RCA cables into the stereo or converter, and run them properly from behind your radio to the amp but DO NOT CONNECT THEM YET. STEP 4: Connect the REMOTE wire from your stereo to the same wire for your amp . (this enables the amp to turn on/off with your radio.. otherwise.. you will have alot of dead batteries) STEP 5: re-install your stereo into the car. STEP 6: Connect the RCA speakers into the INPUTS on your amp STEP 7: Connect the REMOTE wire to your amp. STEP 8: Connect the speaker wire from the OUTPUTS on your amp to the speakers you wish to power STEP 9: Connect the POWER CABLE to the amp PROPERLY STEP 10: Connect the GROUND CABLE to a metal part of your car (sheet metal, not just a bolt) STEP 11: Connect the POWER CABLE to the battery cable STEP 12: Re-connect your Battery STEP 13: Start your car, and test your radio.
If you have any issues from here.. you need to re-check all of your connections.
if its the factory radio more likely it dont have RCAs ..You will need a 'speaker to line level adaptor" ..This has 3 or 4 wires at one end and RCAs at the other.simply connect a left and right set from behind radio or from rear speakers into left and right sets on adaptor ..then connect your RCA cables side to amplifier using RCA wires.