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Stock Head unit

04-10-2004, 09:42 PM
I have 2000 Lincoln LS, I am trying to add a sub to my exsisting stock head unit. Does anyone know whick wires are the correct ones to attach to or does anyone know the colors of which wire ( speaker, remote, power, gorund ).

04-13-2004, 08:32 AM
Which system do you have (Alpine or not)? Factory "subs" in the rear deck?

04-13-2004, 08:49 AM
I do not have the Alpine system. My lincoln only has 4 speakers. If i am not mistaken , the alpine has 6 speakers.

04-13-2004, 10:53 AM
OK. I have the same system. When I added my subs, I used the speaker-level inputs and tapped into the rear door speakers for a signal. I believe the colors were purple/purple&white and gray/gray&white. I pulled the B-pillar trim to gain access to the wiring before it entered the doors. There is an unused plug on the left sidewall of the trunk, near the seatback, under the carpeting, near the top. I believe I had to run a line to the front passenger footwell fusebox to find a switched hot for the remote signal. Power and ground came from the trunk, since the battery is right there.

04-19-2004, 11:54 AM
What is the easiest way to get to the " B-pilar " and where is it ? Will I be able to get both channels from the area?

04-19-2004, 03:07 PM
The B-pillar is the vertical structural member that separates the front and rear doors. The rear door hinges are welded to it. Just FYI: A-pillar is the vertical member that makes up part of the windshield frame. C-pillar is part rear glass/door frame...

To access the wiring, pull off the interior trim from the B-pillar and find the wires running to the rear doors. Splice into those.

01 Lincoln LS
06-23-2004, 04:21 AM
I have an 01 Lincoln LS, i want to put subs in and i do have the Alpine HU. There is a 6 Disk CD Changer in the glove compartment. Does it sound fine if u take the signal from the speakers to amplify because i have only fed signal from preamps to the amplifier.

06-23-2004, 08:10 AM
If you have the Alpine unit, you can use the preamp lines that feed the subwoofer unit. Otherwise, yes, the speaker level connection provides decent sound.

01 Lincoln LS
06-23-2004, 04:33 PM
are the preamp outputs behind the headunit or is there an amplifier that the preouts are running to somewhere in the car?

06-23-2004, 09:05 PM
as chris stated - if you have the alpine unit (with subs) here is the wriring:

Stereo Wiring:

According to the FOMOCO wiring diagram for 2000-2002, the factory harness connectors are wired as follows:

The large 20-pin connector:
Position 5 and 6 = right rear (- white and + gray)
Position 12 and 13 = left rear (- whit/violet and + gray/white)
Position 7 and 8 = right front (- white/red and + gray/red)
Position 14 and 15 = left front (- white/black and + gray/black)

Constant power = position 9 (
Switched hot in start = position 3 (gray/orange)
Switched hot in run or ACC = position 10 (yellow/green)
Ground = position 16 (black/green)

The 16-pin connector contains the connections to the steering wheel controls and various data bus signals. The cassette systems with external CD changer have a connector dedicated to the signal cable for the changer.

On audiophile systems, there is an 8-pin connector wired as follows:
position 1 = sub + line level signal (gray/red)
position 2 = sub - line level signal (white/red)
position 3 = shield for sub amp signal
position 4 = +12 remote power to sub amp (yellow/red)
position 5 = center channel - line level signal (gray)
position 6 = center channel + line level signal (white)
position 7 = shield for center channel signal
position 8 = +12 remote power to center channel amp (yellow)

The trunk connector (on the drivers side) is number C465 and the sub audio uses these pins:
1 = yellow/red: switched hot
3 = shield for low level audio signal
5 = red: constant power from battery junction box fuse F418 (20 amps)
7 = white/red: low level LEFT audio signal
8 = grey/red: low level RIGHT audio signal

01 Lincoln LS
06-26-2004, 04:39 PM
Ok, i removed the stock 4x6s and the box that iwas in, i wired the amp and subs. Everything has worked out great, But the subwoofer volume isn't great, My gains on my amp are set right and even with my bass boost knob up i don't get much volume from the subs. Is there an alternative to replacing the HU to increase the bass volume? Would i need to buy an EQ, and if so wouldn't that be a bitach to install because i am using all stock wiring except for the subs???

06-28-2004, 08:40 AM
I can't help at this point. Haven't been there, haven't done that. Sorry. All I can put forth is to recheck your gain.

06-28-2004, 01:57 PM
an EQ wouldn't help.

I am running a Sony Xplod Amplifier/Subwoofers Package (XM-2165GTX amplifier / 2x XS-L1200B 12" subwoofer). Gives a good thump and shakes the car if I want it to.

try unplugging the lead to the right or left side amp input - see if that makes a difference.

01 Lincoln LS
06-28-2004, 06:31 PM
the subs do work and decently, nice thump but not exactly what i was looking for. My last car was loud, ranked 140.3 DBs on a new mic. But this one isn't pushing much. Switching left and right RCA leads will not do anything. I have my amp pushing in mono, not stereo. I need to get something that will allow me to raise bass volume more, i will probably end up having to buy a new HU.

06-28-2004, 06:35 PM
You might want to try to make sure that you have the polarity right for the RCA's. You really do not need to hook up both right and left channels for a sub. But, if you want to keep it that way, just unhook one and see what it is doing.

Also, you never stated what sub, box, or amp you are using.

06-29-2004, 08:04 AM
Perhaps the voltage from the preouts is too low.

01 Lincoln LS
06-30-2004, 01:55 AM
Amp is a 2400 watt amp by MA Audio... Subs. 2X Clif Designs Comps Box . 4ft^3 Bandpass

06-30-2004, 08:06 AM
With that much firepower, I'd drop the couple hundred for a new HU. They even make adapters to integrate the wheel controls into the HU.

06-30-2004, 08:33 PM
I 2nd that. You will never get the full potential out of any sub when running it with a OEM head unit!

07-06-2004, 04:50 PM
I've got a 2001 LS and have been working for months trying to get my subwoofer working in it (and posted with problems on here a while ago). I've got the Alpine receiver with 6-disc changer in-dash, but only 6 speakers (4 doors and 2 center channel). In the rear deck, it looks like there are holes for 6x9's.

I'm using a fairly old amp and sub that I had used in my previous car, and the setup sounded great in there. I came off the rear speaker wires, through a line-level converter, and into the amp. I've tried the same setup with the LS, but have had the same problems the other guy was talking about with low volume. It's just not as loud as it was in my other car. I've tried about every different way of setting it up. I've run the speaker-level wires into the high inputs on the amp, I've run through a line converter into the preamp inputs on the amp. I tried that connector in the trunk going to the preamp inputs on the amp, but that was barely audible (I checked voltages, and those are much lower than what I get out of the line-level converter). Out of desperation, I even tried going from the speaker-level to the preamp inputs on the amp. This finally gave me some good volume, but the sound quality sucked. So, now I've pretty much given up and am just settled with the line converter.

Now, it does have fair volume (though still not what it was in my old car), but it sounds really bad. The bass seems to resonate really bad or something, it just hurts my ears when I have it up at all. I can't figure out what is going on now. This weekend, I even built a new box because I thought maybe the direction it was pointing (right into the rear deck) might have made it sound bad. But, with it in a new box and pointing towards the rear of the vehicle, it hasn't improved. It's really pissing me off that I have this great car, but the stereo sucks. I don't really have the money to put a lot of work into it, and there is no reason it shouldn't work, so it's just frustrating.

Even if I do decide to upgrade the stereo, how do I know that will work any better? And, can I get a decent-looking faceplate to match the wood trim of the console if I were to buy a new receiver? I hate to get rid of the 6-disc changer, though, a new receiver like that would cost too much.

I've also considered just scrapping the sub and getting some good 6x9's for the rear deck for a little bit of bass. But, at this point, I don't know if the stereo is causing the poor sound quality (and would still be there with 6x9 speakers), or if it's my amp and sub. It's a beautiful car, but I'm quickly getting frustrated by these stupid flaws.

01 Lincoln LS
07-06-2004, 09:50 PM
the holes in the back are for 4X6s.
that picture on the bottom of that page is what the whole speaker system that goes in the trunk looks like. You can see my setup aswell. At full blast the 2400 watts sounds like the stock system was. I think that its the Headunit that is causeing this low volume mess. At full blast i am getting barely any power, my license plate doesn't even rattle! I don't get a massage like i used to. Lucky for me my 6 disk changer is in the glove compartment so i can upgrade my HU. without loosing much, because its gay my stock unit has a caset deck, who uses those??? Anyways. I am going to put my new HU in very soon. I will let you know if that fixed the problem.

07-06-2004, 10:05 PM
So, that's what's supposed to go in those holes in the rear deck? Were those supposed to act as subs? I can't imagine those small of speakers producing much bass.

That sucks if it is the stereo that is the problem, Alpine is a good name, and I would hate to get rid of the 6-disc changer. Well, thanks for the info, anyway. I guess I'll just have to settle for a substandard stereo in a really nice car. Stupid manufacturers. Wouldn't be so bad if I had a big engine, but 252HP for a V8 is pretty weak. Maybe I won't be keeping this car as long as I would have liked to.

07-06-2004, 10:10 PM
Hey, let me know if the volume changes with the new receiver, I'm curious to know.

How is the sound of your subs with the stock HU? Do you have any problems with the bass sounding weird or anything? That's what I don't get, in my car it just terrible. The bass seems to hit at the right places, but resonates really bad or something. I'm not sure exactly how to describe it.

07-07-2004, 07:40 AM
No. The cutouts in the rear deck are odd-sized. I have 6x9's mounted in there, but the holes are just a bit too big...

01 Lincoln LS
07-08-2004, 08:53 PM
Those 4x6s that were stock were actually really bassy. But i think its just the Headunit's equalizer thats keeping the bass from really hitting hard. Maybe your sub's amp needs a crossover to filter out all the higher frequencies??? At max volume there is enough bass to make the rear view mirror useless but still its not the sub nor amp's potential.

01 Lincoln LS
07-23-2004, 10:57 AM
Ok i just swapped out my stock unit with a pioneer hu. All i did was get a wure harness and a dash kit. Ok definatly increased the bass 10X. But i now have a problem. One of the connectors that went behind the stock HU was not only dedicated to the Subs but it was also dedicated to the speakers in the front center console.

07-23-2004, 04:38 PM
Thanks for the update. That's too bad that Lincoln and Alpine team up to have such a crappy receiver in the car. Does it look good in the dash with a kit, does it blend in well with the climate controls and stuff? I've never seen a dash kit, so I don't know how well they fit. I might have to consider a HU upgrade in the future.

07-23-2004, 09:20 PM
Guys, you will always get the best sound when using a stereo with dedicated RCA sub outputs period. I have been in the bizz for many years now and have tried all that I can do with all kinds of cars but it just never works well. Usually it is a tuning problem where either it is too bassy or not enough. On the Alpine/Ford units, the problem lies with the way the speaker outputs work. If they read less ohms(this happens when a speaker is being over worked or if you add line level outputs for another amp) it adjusts the bass output accordingly. The way that I got around this was bridging the rear channels together by taking the (+) from one rear speaker and the (-) of the other into one channel of the RCA converter. It still wasn't the best but seemed to work better.

07-23-2004, 09:48 PM
Thanks for the thoughts, ponchonutty. I'm sure sticking with stock equipment isn't the best way to go, but I don't really want to put the money into a whole new system, ruin the looks, and lose the 6-disc changer. I just wanted a little upgrade using the stuff I already have. Actually, I'm satisfied with the amount of bass I'm getting now (even if it is less than what I had previously), but it's the tone of it that annoys me. I can't figure out why it sounds so poor. Anyway, any information helps. I don't know much, and I'm trying to learn all I can. Maybe I'll have to try bridging the inputs off both rear speakers, as you suggested.

01 Lincoln LS
07-25-2004, 05:40 PM
you get so much more sound out of your stock speakers when u upgrade the HU, the harness kit looks pretty good too, clean. it gives you another pocket too so u can put a remote or something in it, i am going to use it to mount an EQ. I can get pics of the kit if u want.

07-25-2004, 08:17 PM
I'd like to see of a picture of the dash kit, but if it's any trouble, don't worry about it. I'm not sure what I'm going to end up doing about the stereo for now, anyway. Or, is there a website that has pictures that would be easier to link to than posting pics?

01 Lincoln LS
07-25-2004, 10:33 PM
seems u have a little more to lose then me, my cd changer was located in the jlove compartment. I guess the units with the cassett player needed the room in the dash so they moved the changer to the trunk. Ayways. I took pics and posted them in my Sound Domain page. here is the link...

07-26-2004, 04:58 PM
That fits into the dash well. Who makes those dash kits, and do they come with the wood trim? My car has that wood trim around the stereo and climate controls in the console.

01 Lincoln LS
07-26-2004, 09:28 PM 8.html

thats the kit i have.. It doesn't come with the wood grain but you can get some vynl sticker things that give it the same look.

08-09-2004, 05:41 PM
Guys, you will always get the best sound when using a stereo with dedicated RCA sub outputs period. I have been in the bizz for many years now and have tried all that I can do with all kinds of cars but it just never works well. Usually it is a tuning problem where either it is too bassy or not enough. On the Alpine/Ford units, the problem lies with the way the speaker outputs work. If they read less ohms(this happens when a speaker is being over worked or if you add line level outputs for another amp) it adjusts the bass output accordingly. The way that I got around this was bridging the rear channels together by taking the (+) from one rear speaker and the (-) of the other into one channel of the RCA converter. It still wasn't the best but seemed to work better.

Okay, you may be on to something suggesting impedance mismatch with the amp attached to the speaker. It would be ideal to use the connector in the trunk with the preamp signals, but they are too low for my amp. I tried measuring the voltage at the connector and couldn't even get a reading on the meter. Does anyone know what the voltage here is? Is it a regular preamp signal that should work in any amplifier? And, would it be possible to boost it so I get decent voltage to my amp? I was thinking about building an op-amp circuit to amplify that voltage, but that may be a bit of an undertaking. Unfortunately, I don't have an o-scope to look at any of these signals to see what's really going on. And, I don't know how different audio signals work (speaker vs preamp), so I can't really build anything off theory. Are there any products on the market made for boosting a preamp signal before the amplifier? I've seen one or two things that look like they might, but the descriptions are a little vague. Anyway, I'd appreciate any thoughts.

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