How to install aftermarket radio with mach 460
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Old March 24th, 2009, 08:58 PM   12 links from elsewhere to this Post. Click to view. #1
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How to install aftermarket radio with mach 460


After a ton of research, i finally got my sony radio installed and working properly with the stock amps, subs, and tweeters. I though i would make a post to eliminate the confusion for anyone else that would like to convert theirs so it's a little easier for them. Hope this helps...

First thing, here's what you'll need:

Adapter harness, this one is the only one that will work... trust me, i've discovered this throug trial and error

Ford Receiver Wire Harness For select 2001-03 Ford Mustang and 2003 Lincoln LS models at Crutchfield.com

As you can see, it only has two plugs YOU DO NOT NEED THE THIRD ONE! However, the small plug is important, as it is completely responsible for controlling the amps. If you make the same mistake as i did, and do not get the correct plug, you'll end up listening to your tweeters. The amps need a low level signal coming from the radio, and therefore require an RCA connection. Also make sure you wire up BOTH amp powers (blue with white stripe) and BOTH amp grounds.
THIS CONTROLS BOTH FRONT (in door) AND REAR SUBS
The remaining tweeters are controlled by a high level output, and can be wired straight into the harness for your after market radio.

You will also need an adapter plate to adapt the stock opening to a normal radio size. ( the one i got wasn't all that great and required some fabrication, i would recommend trying the one from crutchfield)


LASTLY AND IMPORTANT!!!
Make sure you either buy an aftermarket radio that can limit High frequencies for the bass, and low levels for the tweeters, or you will be pumping bass out of your tweeters. You can also do this by wiring "Bass Blockers" into your harness. The stereo i ordered was able to control all of this and did not require bass blockers, i highly recommend it, but i'm sure there's other one's that have the same function
here's the link for the radio i purchased, it's nice because you can change the light color to green to match your gauges and it has usb capabilities that work great for playing music off my blackberry

Sony CDX-GT730UI (cdxgt730ui) In-Dash CD Receivers with MP3 / WMA Playback In-Dash Car Stereo Receivers and Head Units Car Audio and Video - Sonic Electronix

Well i think that's about it, i'm sorry for the lengthy post... just hoping this will keep people from going through the frustration i had to
If anyone has any questions, just ask
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Old March 24th, 2009, 09:51 PM   #2
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Good info, thanks.
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Old April 21st, 2009, 01:58 PM   #3
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I have a question, im using the crutchfield harness, and where do i put the blue/white amplifier turn on wires? do i run them into the yellow power? and the rca cables do i run into the back of the headunit from the amplifier harness?
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Old April 21st, 2009, 03:54 PM   #4
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Your blue and white wires on the harness with the RCAs should be connected to the blue wire on your head unit harness (remote power, might be listed as a power antenna wire). And the RCAs plug into the back of your head unit, i think you're supposed to plug them into the front RCA slots if you have front and rear rca's

This is a pretty good description of how to do the install

Integrating AM Head Unit w/ Mach 460 (00-04 Mustangs) - Mustang Forums

Other good info on this, explains the grounding work a little better

Mach 460 Head Unit
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Old April 21st, 2009, 03:56 PM   #5
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There should be a yellow wire (continuous power, I think) on your head unit harness that you connect to another yellow wire on your crutchfield harness...
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Old April 21st, 2009, 04:06 PM   #6
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The RCA's plug into the RCA plugs on the back of the head unit, i plugged mine into the rear slots, because my head unit allows me to tweak those separately, but for most basic radio heads, it shouldn't matter, it'll just be affected based on the balance of front and rear.
As for the amp power wires, my radio head had a separate wire for amp power, however, all it needs is a 12volt switched power, DO NOT hook it to continuous power, as your amps will ALWAYS be on and it will drain your battery
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Old April 21st, 2009, 04:27 PM   #7
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^^ True that. I just hook the amps to the blue power antenna wire. There is only power to that wire when the radio is on (hence why a power antenna is only up when the radio is on). He's right though, any switched power source will do. I've seen people even hook their amps up to a continuous power source and have a toggle switch. Not the smartest thing in the world because I just know I would leave it on, but w/e it works for them.
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Old April 21st, 2009, 09:49 PM   #8
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I actually JUST hooked my harness up and put my cdplayer in. It was pretty easy, but my harness was different than most other years. My second plug only had power wires for the amps, no grounds, so it was an easier hookup (also mine didn't have an orange/black wire ?) Connected my two blue amp power wires and my external amp power wire to the blue wire from the head unit, everything works perfectly!
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Old April 21st, 2009, 09:56 PM   #9
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Glad to hear it man!
I actually got the harness you're talking about first, but I needed the grounds for my year =P so I eneded up having to get a different harness
One thing you'll NEED to do
Most radios will send base signals to the tweaters, on my radio you can set a cut off frequency to avoid blowing out a tweeter, if your radio head won't do this, you'll need to pick up some "bass blockers" which will do this for you. They're an easy wire in and they're pretty cheap too, like $15 I believe
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Old April 21st, 2009, 11:34 PM   #10
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I wish there were instructions about actually installing it tho lol. like wiring, with pictures n crap. im about to get a new deck and im not willing to spend $200 in installation.
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Old April 22nd, 2009, 07:40 AM   #11
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yeah, my crutchfield harness i bought came with wiring diagrams, and in coordination with the diagrams that came with my sony radio head, it showed every wire
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Old April 22nd, 2009, 01:59 PM   #12
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trueblue02 it truely is simple. DO NOT SPEND $200 ON INSTALLATION. Hell, i'll wire the thing up for $20 if you pay for shipping to and from. But really, you should be able to do this yourself. Most of the wires from the car harness hook up to the same color combination (purple goes to purple, purple w/ black stripe goes to purple w/ black stripe, etc). Sometimes if the wires dont match anything you dont have to use them. I did not need the yellow and black mute wire when I installed mine, I just taped it off to insulate it.

I've done a few of them before like on a '95 and '97 avenger, and it seems like the wire colors are almost always universal to avoid confusion. Do it yourself and if you have any questions, shoot me a PM. I usually answer pretty quickly.
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Old April 22nd, 2009, 05:10 PM   #13
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^^ Yeah after market companies are pretty good about making everything match up, if you get a good harness it isn't hard at all, you do all the wiring out of the car and then just plug your new stereo in, you won't have any problems, and if you do, you're welcome to message me also and i'll be glad to answer any questions. Since you have an 02, it's probably the same exact wiring as i have, unless you have the mach 1000
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Old April 22nd, 2009, 06:17 PM   #14
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Nope i have the same deck as u did i think. not the 1000. here's what i plan on getting:
Alpine CDA-105 CD receiver at Crutchfield.com
(06redfiregt recomended it, and i think its plenty, i just want to use my ipod and play music).

I did want to get a touch screen DVD playing deck but im not sure yet. isn't that way more complicated to install?
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Old April 22nd, 2009, 06:49 PM   #15
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shoulda looked up my posts from like 2005 .. I have a JVC aftermarket installed into my stock MACH 460 .. I also have MB Quarts where the stock 6x8s were .. if you want to use the complete MACH 460 setup (aka all 3 amps) the system sounds great if you do it right .. I had a LOT of people take their stuff to BEST BUY and those guys didn't know how to hook it up so everyone lost the 6x8s because they FORGOT about the remote wire to the rear amps .. I'm sure my schematics are online still at a few other places ..

remember the front amp it rated at 500-20K Hz .. and the "SUBS" are from 20-500Hz .. the front amp feeds the rear amps with a modulated RF signal (that's why you can't tie off an aftermarket sub from those lines - you have to tie them into the Black/Green and White/Black lines themselves that go to the 6x8s) ..

installing an aftermarket head unit to tie into the front amp (4way that feeds all 4 "tweeters / full range") if you CRANK up the volume it WILL sound like garbage because your unit it pumping out say 25-55 watts per channel and the stock head unit does not .. it feeds that front amp which amplifies and crosses over the frequencies.
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Old September 16th, 2009, 12:47 PM   #16
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Low bass and beep on startup


Hey scp616 I installed the same sound system as the one you have.. But the bass levels I am getting from the sound system is far too low compared with my stock mach system. Also I get a strange beep kinda noisy sound when I press the source button to actually start the system. Did ya notice anything like that?
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Old September 16th, 2009, 02:56 PM   #17
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Originally Posted by tsmst View Post
Hey scp616 I installed the same sound system as the one you have.. But the bass levels I am getting from the sound system is far too low compared with my stock mach system. Also I get a strange beep kinda noisy sound when I press the source button to actually start the system. Did ya notice anything like that?
What harness did you use and depending on the brand the beep noise is common when you press source.
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Old September 16th, 2009, 04:44 PM   #18
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I got the harness from crutchfield :

Ford Receiver Wiring Harness For select 1989-2000 Fords with factory amplifiers at Crutchfield.com

I read somewhere people saying that they got a loud pop noise when they switch on their aftermarket sound system.
But I get a beep noise when after the sound system has been started, when it actually chooses the mode of playing.
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Old September 16th, 2009, 06:54 PM   #19
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thats the right harness. as long as you hooked it up to the RCA front and rear outputs then you should be fine. that beeping sound is fine, what brand unit do you have? The popping sound is very distinctive and it doesnt sound like a beeping at all.
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Old September 17th, 2009, 04:15 AM   #20
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So I checked my system again and the rear subs seem to be working fine, but not the front ones. Did I miss some wiring or is something else wrong with my aftermarket unit?
I am thinking of bypassing the main stock amplifier and connecting the output for subs on the aftermarket system (yes, my aftermarket sound system has a separate output for subs) directly to the rear amps. Will this work?
I have a Sony CDX GT630UI installed currently as the head unit... But the beeping screeching noise is still there and its annoying! Does anyone know how to get rid of it?
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