Problem with mach 460 system - Ford Mustang Forum
 
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post #1 of 5 (permalink) Old 05-31-2012 Thread Starter
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Problem with mach 460 system

Hey I am new to the forum and I am needing some help with hooking up a aftermarket sony CD player, I just got another pony about a month ago and I still cant get any bass from speakers, only the tweeters are playing. I have researched day after day on how hard it is to replace the unit.I have bought 3 harnesses, went to best buy; which they told me to hook negitives to postives on spear harness, and nothing has worked! Can someone please help me before I rip the whole system out!

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post #2 of 5 (permalink) Old 05-31-2012
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If the sound you are getting is distorted, it is most likely because the signal from the head unit is too strong and it is overloading the amp. If you are getting a nice, clean sound for the higher frequencies and nothing at all on lower frequencies, it could be the crossover between the tweeter behind the mirror, and the door speaker. It doesn't sound like anybody was behind your door panels, so this one is not likely - just thought I should mention it.

Look through the settings/manual of your new head unit. If there is a way to turn off the head unit's internal amp or set it to "line level" output, that would be the easy way. If that's out, next option, in order of difficulty, would be running all new speaker wire (I seem to remember the stock speakers being pretty decent, so I wouldn't ditch them). You could also bypass your factory amp entirely - either by finding an adapter that goes where your speakers plug into the factory amp or splicing into the speaker wires. I would suggest taking some time to research on how to manually splice into the factory stereo to amp harness, soldering is easy and cheap. Hopefully the amp is behind the dash and not in the trunk somewhere (sorry, I don't know your year very well)

Good luck!


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post #3 of 5 (permalink) Old 05-31-2012
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really you need a head unit that is compatible with the Mach 460 system (it's a low ohm system), talk to Crutchfield for best results
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post #4 of 5 (permalink) Old 05-31-2012 Thread Starter
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I have set and reset all sub, bass, levels on my radio and it still does not work. I did get the amps to kick on for a split second when I was moving the speaker harness around, so I thought maybe it had a short in it, I bought a new one and still nothing. Now I am getting so aggervated with this system I am trying to just find a factory radio.
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post #5 of 5 (permalink) Old 05-31-2012
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Quote:
Originally Posted by 2Manystangs View Post
really you need a head unit that is compatible with the Mach 460 system (it's a low ohm system), talk to Crutchfield for best results
Sounds like a really good idea. Another option is to get a few line-drop converters and run them from the RCA pre-outs on your new head unit to where your speaker wires tie into the harness you bought. RCAs put out a less powerful signal. Don't give up!

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2007 Mustang GT Premium *RIP* Death at 20MPH
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2018 Mustang GT Base
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- 6 Speed Manual
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