adding aftermarket sub to stock soundsystem

mineralgray02GT · 07-30-2003, 10:38 PM

I have a 2002 GT, without the Mach 1000 soundsystem. It has what Ford calls the "Premium" system, with a DIN and a half sized CD/Tape head unit, and front and rear speakers.

I have wired a sub/amp/box into a factory GM system before, and I know that I'll need a line level converter to do it in the Mustang...can anybody out there tell me if I'm going about this the right way? I know that with the converter, I'll have to tap into two speaker signals (probably rear speakers) but does this have to be done at the harness, or could I do the tap near the speaker connections? I have gotten alot of shadetree mechanic advice, and I figured you guys here would be the ones to know the answer.

Please describe in detail, if you don't mind. Thanks in advance!

tireburner163 · 08-02-2003, 11:50 PM

1) Yes it CAN be done with a line converter, you should be able to tap into the lines near the speakers.

2) I would highly suggest upgrading the rest of your system first. I nice aftermarket HU would be great and greatly increase the sound quality of your sterio system. Replacing the door speakers with aftermarket units would also add a great deal of sound quality. At a minimum I would suggest replacing the stock head unit with a aftermarket CD player before adding subs.

-Josh, aka the tireburner

ac97gt · 08-03-2003, 02:20 AM

http://www.mustangworld.com/ourpics/fcar/despeeds1.htm should be the same for the mach 1000. i am actually in the process today of doing exactly this. with the same box laid in the back seat and everything. my problem is that my line out converter isnt working right. i hook it up like it says and i get intermittent results. at first it works beautiful then fades out and stays off and all sorts of weird stuff. im gonna play with it more tomorrow and get it to work. i was crossing some wires just tonight after i got home and it seemed like somehow crossing the positive and negative wires gets it to work?

i have no idea, but tomorrow i should have an answer. head to that link as it is fairly informal.

07-30-2003, 10:38 PM	#1
mineralgray02GT Registered Member Join Date: Jul 2003 Posts: 1	adding aftermarket sub to stock soundsystem I have a 2002 GT, without the Mach 1000 soundsystem. It has what Ford calls the "Premium" system, with a DIN and a half sized CD/Tape head unit, and front and rear speakers. I have wired a sub/amp/box into a factory GM system before, and I know that I'll need a line level converter to do it in the Mustang...can anybody out there tell me if I'm going about this the right way? I know that with the converter, I'll have to tap into two speaker signals (probably rear speakers) but does this have to be done at the harness, or could I do the tap near the speaker connections? I have gotten alot of shadetree mechanic advice, and I figured you guys here would be the ones to know the answer. Please describe in detail, if you don't mind. Thanks in advance! __________________ I'd rather push my Mustang than drive a Camaro.. Bruce

08-02-2003, 11:50 PM	#2
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	1) Yes it CAN be done with a line converter, you should be able to tap into the lines near the speakers. 2) I would highly suggest upgrading the rest of your system first. I nice aftermarket HU would be great and greatly increase the sound quality of your sterio system. Replacing the door speakers with aftermarket units would also add a great deal of sound quality. At a minimum I would suggest replacing the stock head unit with a aftermarket CD player before adding subs. -Josh, aka the tireburner __________________ 1987 Buick T-type 1998 HD Electra Elide

08-03-2003, 02:20 AM	#3
ac97gt Registered Member Join Date: May 2003 Location: Virginia (DC) Posts: 232	http://www.mustangworld.com/ourpics/fcar/despeeds1.htm should be the same for the mach 1000. i am actually in the process today of doing exactly this. with the same box laid in the back seat and everything. my problem is that my line out converter isnt working right. i hook it up like it says and i get intermittent results. at first it works beautiful then fades out and stays off and all sorts of weird stuff. im gonna play with it more tomorrow and get it to work. i was crossing some wires just tonight after i got home and it seemed like somehow crossing the positive and negative wires gets it to work? i have no idea, but tomorrow i should have an answer. head to that link as it is fairly informal. __________________ 1997 Mustang GT "Pacific Green" Flowmasters Bassani X w/cats Steeda Triax K&N and Air Intake Silencer Removed More to come with money! My Ride

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Dont use 1.7 rockers with stock heads?	Coupe5oh	Windsor Power	10	11-28-2015 12:36 PM
Stock No More	Stroked408	Windsor Power	9	06-12-2002 08:19 PM
For whoever it was considering using stock ported heads	2FastLX	Windsor Power	5	10-11-2001 01:53 PM
Would an old stock 351w have more power?	BowTie Eater 5 Liter	Windsor Power	8	02-18-2001 10:54 PM
LT's vs. shorties vs. stock headers	jonnyk	Windsor Power	9	01-01-2001 11:28 AM