Headrest wiring to parcel shelf speakers - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 09-01-2011, 01:03 PM   #1
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default Headrest wiring to parcel shelf speakers

So in an NA, there are 4 wires per seat for headrest speaker hookup:

Black -
White +
Yellow -
Red +

(polarity is what I figured based on the connectors at the headrest speakers and could be wrong)

When I ran wiring for my 6x9s yesterday, I ran wires from the pigtail under the driver's seat only. Black/White to the passenger side and Yellow/Red to the driver's.

Have I done this properly? They are barely audible.

How are the headrests set up? Is it one left and one right speaker per rest or two lefts in the driver's seat and two rights in the passenger? Really , the answer to that should show the way forward but I'm sure someone here knows EXACTLY what to do.
kotomile is offline   Reply With Quote
Old 09-01-2011, 01:42 PM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

using stock HU?

the factory wiring should be:

Left
Red/Yellow
Red/Blue

Right
Blue/White
Blue/Orange


the passenger side speakers are in parallel
Braineack is offline   Reply With Quote
Old 09-01-2011, 04:39 PM   #3
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Nope, Alpine HU. Trying to figure out the rear speakers before I attempt to tune the IMPRINT stuff.

The Red/Yellow/Black/White that I referred to are the colors from the seat pigtail.
kotomile is offline   Reply With Quote
Old 09-01-2011, 04:50 PM   #4
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

beats me.
Braineack is offline   Reply With Quote
Old 09-01-2011, 05:24 PM   #5
Senior Member
iTrader: (4)
 
Join Date: Jan 2008
Location: Falls Church, VA
Posts: 1,367
Total Cats: 16
Default

It has been a looong time since I've been to the audio section of m.net, but it's a known issue that the headrest speakers were factory wired out-of-phase on many/most Miatas. I don't remember the wire colors, but I used a multimeter to determine which pins on the connector behind the HU went to which headrest wires. When you do this you will see how fucked up the factory headrest wiring is.
ScottFW is offline   Reply With Quote
Old 09-02-2011, 12:16 AM   #6
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Greeeeaaaattt.
kotomile is offline   Reply With Quote
Old 09-02-2011, 12:24 AM   #7
Senior Member
iTrader: (8)
 
Join Date: Sep 2010
Location: misery
Posts: 1,130
Total Cats: 9
Default

Attached Thumbnails
Headrest wiring to parcel shelf speakers-ybvgn.jpg  
phillyb is offline   Reply With Quote
Old 09-02-2011, 05:44 PM   #8
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

lol wut
kotomile is offline   Reply With Quote
Old 09-02-2011, 05:55 PM   #9
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

thats so rad. i knew there was a dark science to being an EE.
Braineack is offline   Reply With Quote
Old 09-02-2011, 06:12 PM   #10
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago (Over two miles from Wrigley Field. Fuck the Cubs. Fuck them in their smarmy goat-hole.)
Posts: 26,317
Total Cats: 1,915
Default

I'd been taught it as "Bad Boys Rape..."

Probably several different versions floating around.


Ok, some basics:

Black, White, Red and Yellow are not the colors of a factory headrest harness, so we'll just toss the factory wiring diagram out the window and forget about it. I'm going to assume that the pinout you derived for them is correct.

Quote:
How are the headrests set up? Is it one left and one right speaker per rest or two lefts in the driver's seat and two rights in the passenger?
One left and one right in each headrest, with the two sets wired in parallel.

Alpine appears to use the following color-code for the wiring on their pigtail:

Rear Left + = Green
Rear Left - = Grn / Blk
Rear Right + = Violet
Rear Right - = Violet / Blk

If I interpret your earlier post correctly, then for a single headrest, the left speaker is wired to Red (+) and Yellow (-), and the right speaker is wired to White (+) and Black (-)

If that is correct, then connect the speakers in the driver's seat as follows:

Green to Red
Grn / Blk to Yellow
Violet to White
Violet / Blk to Black


For the passenger's seat, do the same. So you will wind up with two headrest wires connected to each head-unit wire.




Quote:
They are barely audible.
Yeah, they're a lot quieter than the mains. This is what the front/rear fader control is for. Mine usually winds up biased to the rear quite heavily, like 6/10 or so.
Joe Perez is offline   Reply With Quote
Old 09-03-2011, 12:44 AM   #11
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Thanks for the very helpful post Joe, but I'm not using headrest speakers any longer (no provision for them in Sprint Vs) and am trying to wire in some 6x9s instead.

It seems what I need to do if there is a left and right in each rest is to either double up some of the wires coming from the pigtails intended for the seats' speakers, or to trace the wires back to the headunit and run them anew (ugh).
kotomile is offline   Reply With Quote
Old 09-03-2011, 01:16 PM   #12
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

(Posting from my phone.)

There is a left and right in each. The factory wiring is 4 wires. Two for each channel . The passenger side is just spliced into that.
Braineack is offline   Reply With Quote
Old 09-09-2011, 08:11 PM   #13
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Cool, thanks!
kotomile is offline   Reply With Quote
Old 09-09-2011, 08:14 PM   #14
Elite Member
iTrader: (1)
 
NA6C-Guy's Avatar
 
Join Date: Feb 2008
Location: Birmingham Alabama
Posts: 8,038
Total Cats: 43
Default

Not running new wiring? Stock **** is pathetic. Run new wires, problem solved?
NA6C-Guy is offline   Reply With Quote
Old 09-10-2011, 11:20 PM   #15
Elite Member
iTrader: (12)
 
Join Date: Apr 2008
Location: Longs, SC
Posts: 2,583
Total Cats: 13
Default

Quote:
Originally Posted by Joe Perez View Post
I'd been taught it as "Bad Boys Rape..."
Me too! That and Bad Booz Rots Out Young Guts But Vodka Goes Well.

I found it easier to just mesmerize the colors instead of the little sayings.

Especially since none of the sayings have Gold Silver None at the end.
icantthink4155 is offline   Reply With Quote
Old 09-11-2011, 12:31 PM   #16
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago (Over two miles from Wrigley Field. Fuck the Cubs. Fuck them in their smarmy goat-hole.)
Posts: 26,317
Total Cats: 1,915
Default

Quote:
Originally Posted by icantthink4155 View Post
Especially since none of the sayings have Gold Silver None at the end.
Haha.

I still find myself reciting the old saying for the resistor codes, though for some reason, I never needed a mnemonic to learn the Belden non-paired cable color scheme. Black white red green brown blue orange yellow violet grey pink tan.

Though oddly, I still can never remember the base color sequence for 25 pair CAT5. Not sure why that one won't stick.



Anyway, back on topic:


Koto, forget the factory wiring, there's too much confusion here. Just pull some new wire from the HU itself directly to the new speakers, following this convention:

Rear Left + = Green
Rear Left - = Grn / Blk
Rear Right + = Violet
Rear Right - = Violet / Blk
Joe Perez is offline   Reply With Quote
Old 09-13-2011, 10:06 PM   #17
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

That works well, thanks Joe!

Relatively painless too, since I don't put all of the little screws or trim pieces back, so the console, carpet, etc. is pretty easy to work with. lol
kotomile is offline   Reply With Quote
Old 09-15-2011, 01:16 AM   #18
Newb
 
Join Date: Jul 2007
Posts: 22
Total Cats: 0
Default

yeah, thanks
knightimer is offline   Reply With Quote
Old 09-17-2011, 07:22 PM   #19
Elite Member
Thread Starter
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Got this working correctly now, Scott was right - my speakers were wired out-of-phase as standard... bastards. Who does that? Mazda, apparently.
kotomile is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
1991 special edition with hard top full part out JC, NJ russian Miata parts for sale/trade 6 10-08-2015 04:01 PM
MSPNPPro-MM0105: Coolant Temperature Output slomiata MEGAsquirt 5 10-07-2015 02:11 PM
wiring wideband ground to battery terminal btabor ECUs and Tuning 10 09-28-2015 06:33 PM


Thread Tools

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



All times are GMT -4. The time now is 11:35 AM.