Mach 460 wiring question -

Go Back > Ford Mustang Tech > 4.6L (1996-2004 Modular) Mustang > 4.6L General Discussion

4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Mach 460 wiring question

Thread Tools Search this Thread
Old 05-25-2013, 07:06 PM   #1
1st Gear Member
Join Date: Sep 2009
Vehicle: 1994 Mustang GT
Location: Alabama
Posts: 102
Default Mach 460 wiring question

This weekend I plan to remove the stock mach 460 setup from my 03 roush. I am installing a pioneer deh-2500ui with pioneer 2-ways in the door and rear deck. I am installing one of the sub boxes built to go under the rear deck but that mean the amp rack has to be removed. I want to keep all speakers including the door tweeters. I was wondering what all I need to run new wires for. Can I use the wires running into the amp in the rear to run the rear deck speakers. Also is there any way that I can wire the signal wire that comes out where the head unit is and wire it to the amp output wire. Or do I need to just run new wires from the head unit to the door speakers? I tea that the tweeters will work with the amp rack removed. Is that correct? I definitely want to get rid of the amps though and keep all speakers. Just need to know what all I have to wire.
2003 Roush 380R Sonicblue
03-056 1 of 2 Sonic Blue 380's in '03

Jordan's5.0 is offline   Reply With Quote
Old 05-26-2013, 07:47 AM   #2
2nd Gear Member
Vertigo_GT's Avatar
Join Date: Apr 2013
Vehicle: 2004 GT Convertible
Location: Viera, FL
Posts: 216

I think that you will need to run new wires to all of the speakers if you are going to remove the Mach 460 amps. There are afew writeups on replacing and upgrading the Mach systems. You need to be aware that Ford used 8 ohm speakers in the Mach systems also. I replaced my 460 head unit with a Kenwood KVT-516. I read the stuff I found on the GOOGLE.Some said it can't be done. Others gave compliccated instructions on modifying harnesses. The best way to do it is to go to, enter your car details and then select your head unit from their inventory along with your amps. Crutchfields web app will tell you what harnesses and other adaptors you need and warn you of any incompatabilities or modifications required. If you buy the harness zand /or other components from Crutchfield, they will send you instructions on installation and provide support if needed. I think you are probably going to have to replace the speakers if you go with new amps. I'll get those Mach 460 links when wifey gets off my computer. Posting this from my Nook.

Vertigo_GT is offline   Reply With Quote
Old 05-26-2013, 08:13 AM   #3
2nd Gear Member
Join Date: Sep 2009
Vehicle: 04 GT vert
Location: Jax FL
Posts: 442

The mach system is different than most car stereo systems. To keep your speakers, you will need a device to match impedance between the existing stuff and your new stuff. You should be able to use your existing wires with available adapters, or if you are not planning on returning it to stock, just cut off the current connecters.
04 Mustang GT vert basically stock
88 Dodge Ramcharger 4X4 for those things a Mustang just can't (or shouldn't?) do.
98 Ford Taurus SE Comfort --- wify's ride.
FlamingoGT is offline   Reply With Quote


Similar Threads
Thread Thread Starter Forum Replies Last Post
Spark Plug Change 2007StangV6 2005-2014 Mustangs 19 09-12-2015 04:35 PM
Help! Metra 70-5521 AMP Harness Install cbird1177711 2005-2014 Mustangs 2 09-03-2015 08:43 PM
2003 mach stereo has low volume iamgobono General Tech 0 09-03-2015 12:37 PM
Best Place To Run Power Wire/Firewall '08 cbird1177711 2005-2014 Mustangs 3 09-02-2015 08:51 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 06:56 AM.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company