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Hookup up a sub in a factory Mach 460?

Old 10-07-2011, 09:43 AM
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69MustangCoupe393cid
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Default Hookup up a sub in a factory Mach 460?

Who's done it?

How much voltage should I be getting at my data feed connector in the back of my car? I have my ALOC hooked up/tapped in to the factory wires but I get no power through the RCA wires at all.

The factory Mach 460 works perfect... all 8 speakers. But I can't get power to my RCA's. Could I have a bad ALOC or do I need more then .08 volts coming into it for it to work? That seems like low voltage to me, but my factory stuff works on that voltage. Any input is appreciated, this has been going on for weeks and I'm starting to get annoyed.

EDIT: This is another thread related to this if it helps.

https://mustangforums.com/forum/4-6l...ease-help.html

Last edited by 69MustangCoupe393cid; 10-11-2011 at 07:16 PM.
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Old 10-07-2011, 10:39 AM
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dwtjr3
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I am reading 6 volts coming into my amp.
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Old 10-07-2011, 05:26 PM
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69MustangCoupe393cid
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Originally Posted by dwtjr3
I am reading 6 volts coming into my amp.
Jesus. Then how the hell does my system work on .04-.08V? If I unplug the wire while the stereo is on, the subs straight up turn off. So I know they're working. Is a 2000 different as far as the voltages?

EDIT: I just realized that in 01+ the stereo itself is a pre-amp. In 2000 I they had 3 amps, so my data feed might be before the preamp. Is this maybe the difference? Does anyone have a pre 01 Mach 460 that they cant test?

On a side note I have another ALOC on the way in case that was my problem.

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Old 10-11-2011, 07:15 PM
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I tested the new ALOC I got and as far as the tests I ran on it it seems to act the same as the old one. I didn't hook it up but I don't think that's the problem. Do they require more voltage to work? This makes no sense to me, the old melted one was hooked up there and I assume it worked at one point. Am I supposed to have more voltage in those wires?
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Old 10-11-2011, 08:52 PM
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Originally Posted by 69MustangCoupe393cid
I tested the new ALOC I got and as far as the tests I ran on it it seems to act the same as the old one. I didn't hook it up but I don't think that's the problem. Do they require more voltage to work? This makes no sense to me, the old melted one was hooked up there and I assume it worked at one point. Am I supposed to have more voltage in those wires?
Where did you run you 12v wire to? And are you making a strong ground?
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Old 10-11-2011, 09:10 PM
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Originally Posted by dwtjr3
Where did you run you 12v wire to? And are you making a strong ground?
The amp isn't the problem, it's that the RCA's have no power at the ALOC. The data feed harness to the amps has voltage (.o4-.08 or so), but when I hook up the ALOC I can't get any output from the RCA's directly on the ALOC.

I have it tapped into the plug/harness in this link here:

http://mustangworld.com/ourpics/fcar/despeeds1.htm
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