Celica Forums » Customization How-To Guides » AUDIO/VIDEO & ALARM How-To Guides » Audio System Wiring Codes, GT-S

GT-S Premium Stereo - Wiring Codes
by SilverSurfer


Caps are main color followed by stripe.
HEAD UNIT
GRAY w/silver dots 12V ACC
BLUE w/yellow stripe 12V Constant
WHITE w/green dimmer
WHITE sig left front
YELLOW sig left rear
RED sig right front
BLUE sig right rear
GRAY/shrink sig shield (all)
(You could use the factory amp if your head unit is underpowered and has pre-amp outputs. I didn't try this.)


SPEAKERS
Driver
front 6 1/2 RED/blue + RED/black -
front mid/high PINK + VIOLET -
rear 6 1/2 BLACK + YELLOW -
Passenger
front 6 1/2 GREEN + BLUE/white -
front mid/high L. GREEN + BLUE -
rear 6 1/2 RED + WHITE -

Factory wiring diagram:



Much Thanks to:
SilverSurfer (jbailey@pipeline.com)
Hollywood (hollywoods@hotmail.com)
& 00GTS (slwd89@yahoo.com)

this wires in my celica are different colors than the ones you are saing in here, i dont have any pink wires and there are a couple of brown wires that you dont list???

Chris, GT or GT-S.... and what year is your 7th Gen Celica?

great info!, just what i needed.

I am tring to install a aftermarket radio in my 01 GTS if anyone can help me out with locating the pre amps and wireing i would be greatful

i dont see any pink wires i see brown ones though!!!!!!!

plz reply or send the right diagram to me at azn2daflow@yahoo.com

oh yea my celica gts is a 2002

how so???? please explain how i'm kinda curious!!!

Hey Issac i am going through head units every 2 months and when i have the stereo on i can hear noise like it is grounding on something. Is there some common problem i have not heard of? I know i got the wiring right because i got it from crutchfield. The head units usually work fine then just crap out. The one i am having problems with now is 2 mos. old! It will come on after the car is off all night for about 5 seconds then it is gone. I don't think it is broken but i don't know where to start.

try ur grounds or live wires could be a short
and if u say u have noise when its on then i'd say u have some sort of interference! best bet is to check all ur connections and wires

Hey guys, I just did a headunit install on my G/F's 2000 Celica GTS. The external amplifier is under the dash on the right side of the glove box. Pull the glove box, and you will see it. There are two harnesses that plug into it. Pull them both, and disregard the one with the thick grey wire like the one up at your headunit. If you go to a stereo store, they give you an adapter harness that has 2 different plugs, one small, one a little larger. If you take the plug you removed from the amp and look, you will see that it is one piece, and has two indentation marks on it on the top, one on each side. If you take the larger aftermarket adapter and hold it up between those two indentations, you will notice that it would plug in provided the sides were cut off...... If you do that tho, beware, the wire colors are not the same as the radio, and it will not hook up your front door tweeters. Use the info that the guy posted above and hard wire it in. I made a custom harness w/ 4 sets of speaker wire 2.5 feet long, a yellow power, red memory, and I grounded it out at the support bar directly behind the radio. This works out great! I cut off the stock plugs and hard wired the radio in, but if you were considering selling the car again someday, you could use T-Taps to tap into the wires, that way you retain the stock plug. If anyone has any car audio how to questions, let me know!

Ok, so I am trading in my celica and putting the stock radio back in, It just makes a ticking noise and I get no sound, what is the GRAY/shrink sig shield (all) that was mentioned in the wire codes. Because it appears that the wire inside the shrink has been pulled on and may be thin. I cant think of anything else it could be

Um...i got this Varad Under car LED kit, and i need to connect it to the BASS wire for the pumping thing...which one which one is that? which one should i do if there isn't a bass wire?

i need help with wiring a pioneer cd player. Can anyone here tell me what wires go with what. I tried using the wiring diagram and the codes but i can't make it work. It will sound but like crap and then if i want to focus on front speakers it goes to rear. Its all messed up. Can somone give me pics or some help. thanks

I need help wiring an alpine head unit. It's 60watts peak power by 4 channels so i was just going to bypass the factory amplifier so i didn't have to buy a module. I want to be able to use all of my factory speakers on the GT-S with my 4-channel head unit. Can i do this...and can someone help my sorry soul in doing it?

i just put an alpine CDA-9835 head unit in and i had some difficulty finding the actual wiring codes i needed so it took me awhile but i got it so i figured id help everyone else out who needed it

when u remove the pieces from the center console and remove the factory cd player there are 3 wires that are important from the factory harness

gray with silver dots wire is the 12 volt accessory - red wire on cd player harness
blue with yellow strip is the 12 vlt constant - yellow wire
with with green is the dimmer - orange wire

you will also have to ground the black wire coming out of the after market cd player i did this by crimping a terminal to the end and screwing it into the metal support tube which runs behind where the clock is

now you have to remove the glove box and locate the factory amp when you do you see 2 wiring harnesses remove them and consentrate on the larger one which is on the right or rear

FRONT RIGHT - typically gray on the aftermarket harness
the light green is (-)
blue (+)

FRONT LEFT - typically white
pink (-)
purple (+)

RIGHT REAR - typically purple
red (-)
white (+)

RIGHT LEFT- typically green
black (-)
yellow (+)

u will have to use some additional wire to run from the harness on the back of your aftermarket cd player to the harness from the amp and just install everything back and you should be good using this you actually dont have to buy anything but a little wire and the plastic din cage

I have an 01' GT-S and i just got a pioneer head unit. i bought a wiring harness that does not fit. i have no clue what to do from here. I've never had to go through so much trouble just to swap out a unit. is there not a direct replacement harness? what do i need to do?

The car is a 2000 GT-S and this wiring diagram says its for an 8 speaker setup .. I can locate 4 in the front and 2 in the back but where are the additional 2 ?

I GOT A 1992 GT-S THAT HAS THE SYSTEM 10 AND MY WIRES ARE MESSED UP,IM TRYING TO PUT A AFTER MARKET CD PLAYER IN BUT THE WIRES DONT MATCH UP TO THE DIAGRAM,ANYONE KNOW WHY.

^^^ because the diagram is for a 7th gen celica

I GOT A DIAGRAM FOR 5TH GIN CELICAS BUT ITS NOT EVEN CLOSE

THanks so much!!!!!!!!!!!!! Man, this is exactly I was looking for everywhere, the codes for My CElica Wiring system, Thanks so MMMMMMMMMUUUUUCHHHHHHH!!!!!!!!!

Anyone know which wires to tap in order to hook up an aftermarket amp to the stock HU using a low level signal???

I have a single RCA to stereo RCA adapter and need to capture the low level signal between the HU and the factory amp.

Thanks!

-D-Rock