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amp to stock head unit


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board218 
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Joined: October 17, 2012
Location: Minnesota, United States
Posted: October 17, 2012 at 1:27 AM / IP Logged  

i need help ppl i need to learn how to install an amp into my 2003 focus ztw. i will be putting in 2 ten inch subs but my biggest problem is that the stock head unit is still in and cant be takin out i need to kno how to install the amp to the head unit and everything else invloved in installing this ive never done it b4 so please be detailed i dont want my car to blow up lol. please all help is needed eg: whatwires go were things like that ive never done this b4 or anything like it
ian
i am an idiot 
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Joined: September 21, 2006
Location: Louisiana, United States
Posted: October 17, 2012 at 10:31 AM / IP Logged  
Are you really sure you want to take on an amplifier install as your first project?
You will need either a pac-audio.com SNi-15 or LC-2. You will also need a Power wire kit with the appropriate size wire for your amp. The fuse holder that comes with the power wire kit needs to mounted as close to the battery positive connection as you can. Run the power wire from the battery and go through an existing rubber grommet on the firewall. Do not run it through the door jamb. Get it to the amp. You will also need to run the RCA cable that comes with the kit from the back of your radio to the amplifier. Also run the remote wire from back of radio to the amp.   Get that done and I will get you wire colors to connect the SNi-15 and the remote wire.
board218 
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Joined: October 17, 2012
Location: Minnesota, United States
Posted: October 17, 2012 at 4:54 PM / IP Logged  
My biggest problem is the line output converter what wires to what wires that kinda thing. Oh and the remote wire everything else I think I got a handle on
ian
i am an idiot 
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Location: Louisiana, United States
Posted: October 17, 2012 at 7:29 PM / IP Logged  
     Battery GREEN/ BLACK (+) RADIO HARNESS
     Accessory BLACK/ PINK (+) RADIO HARNESS
     Ground BLACK/ GREEN (-) RADIO HARNESS
     Illumination ORANGE / BLACK (+) RADIO HARNESS
     LF Speaker (+) ORANGE / GREEN
     LF Speaker (-) BLUE/WHITE
     RF Speaker (+) TAN/GREEN
     RF Speaker (-) GREEN/ ORANGE
     LR Speaker (+) GRAY/BLUE
     LR Speaker (-) BROWN / YELLOW
     RR Speaker (+) BLACK/ VIOLET
     RR Speaker (-) ORANGE / VIOLET
Connect the remote wire to the accessory wire.
board218 
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Member spacespace
Joined: October 17, 2012
Location: Minnesota, United States
Posted: October 19, 2012 at 2:32 PM / IP Logged  
i need help with were to put the remote wire on my 2003 ford focus ztw right now i have it hooked up to the 12v radio but its not shuting off this is my first install. i have the schematics for the car just dont know whitch wire to tap
ian
i am an idiot 
Platinum - Posts: 13,670
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Joined: September 21, 2006
Location: Louisiana, United States
Posted: October 19, 2012 at 3:41 PM / IP Logged  
Is there a BLACK/ pink wire on the factory radio harness?
board218 
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Member spacespace
Joined: October 17, 2012
Location: Minnesota, United States
Posted: October 20, 2012 at 1:30 AM / IP Logged  
ok so now i had everything hooked up and it was working. i have a hatchback and when i closed it this morning i got a very hevy sustained base note that kept playing till i opened the back what is that. and now the radio wont turn on unless the power cord is touching the remote wire on the amp, what i mean is that the power has to touch its screw and the remote has to touch its screw and they have to touch each other. other then that nothing works not even stock head unit. ( i have the remote wire tapped into the 12v radio on my car thats orange and black) please any help is apprecated
ian
i am an idiot 
Platinum - Posts: 13,670
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Location: Louisiana, United States
Posted: October 24, 2012 at 10:00 AM / IP Logged  
You have a blown fuse, it is the fuse that is labeled radio or maybe cigarette lighter.
soundnsecurity 
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Joined: November 10, 2008
Location: Louisiana, United States
Posted: October 24, 2012 at 3:29 PM / IP Logged  
that sustained bass note is a feedback loop caused by the line output converter. it happens when you close the hatch because it sends a pressure wave that pushes on the factory speakers, the motion of the speakers sends a pulse through the converter and down to the amp causing the subwoofer to thump which then causes the factory speakers to move again which starts the loop all over again. its kind of like when you hold two phones too close to each other and it makes them echo with a sound loop.
try turning the gains down on the converter or your amp and it should help. your remote wire should go to the BLACK/ pink wire at the factory radio harness. BLACK/ pink means a black wire with a pink stripe. test this wire to make sure it turns on and off with the key so you know it is the right wire, its dangerous to tap factory wiring without testing to make sure you have the right wire.
the wires at the amplifier terminals should not be touching each other, this may be why you have blown fuses. if you have loose strands of wire hanging out then you either need to cut them off or wrap the exposed wire with electrical tape.

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