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Discussion Starter · #1 ·
I am looking at replacing my speakers in my non-nav. However i could use a color code break down if anyone has it.
Dash
Lt +
lt-
Rt+
rt-
Door
Lt+
lt-
Rt+
rt-
Back door
Lt+
Lt-
Rt+
rt-

Please help if you know the colors.

Thanks
 

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On the way. Some of the wire colors change for each speaker when coming in and out of certain connectors in the speaker circuits... not so easy to just list colors for each speaker. Good luck.
 

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Kalo / Ken, can you post the diagrams?

Thanks
PM me your email address I will forward you a wiring diagram. I don't feel I can post this to a forum.

Mention in the message what type of stereo you have, how many speakers, amp, etc.. Thanks.

It's helpful to put the type of CT you have, if you have NAV, and your location info in your profile/sig. to help others who want to reply to your posts. There are different answers for different regions/configurations sometimes. :)
 

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i take no credit for this(or repsonsibility) but i got this from the12volt(which is a reliable source in my eyes) lexus ct200h wiring

I verified the speaker wire colors below against what the Metra wiring harness says for my car(standard 6 speaker)

Here goes...

2012 Lexus CT 200h DirectWire 2.0 Vehicle Information

All Products
Item Wire Color Polarity Wire Location
12 Volts white (125A) + dash fuse box, white 1 pin plug (2E), pin 1
Second 12 Volts N/A
Starter black (SS1) - Power Switch, black 14 pin plug, pin 7
Second Starter yellow (SS2) - Power Switch, black 14 pin plug, pin 2
Ignition red + dash fuse box, white 40 pin plug (2C), pin 2
Second Ignition black + dash fuse box, rear, white 40 pin plug (2B), pin 25
Third Ignition N/A
Accessory green + dash fuse box, rear, white 56 pin plug (2A), pin 43
Second Accessory N/A
Third Accessory N/A
Keysense N/A
Data Bus blue (RX), purple (TX) data Power Switch, black 14 pin plug, pins 10 and 9
The security light is brown (+) at the security indicator, black 24 pin plug, pin 16. The IMO - IMI wires are blue - red at the Power Management Control ECU behind the glove box, gray 31 pin plug, pins 20 and 21.
Can Bus High red (HS-CAN) data data link connector, white 16 pin plug, pin 6
Also found brown at the Body ECU, black 30 pin plug, pin 14. The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Can Bus Low white (HS-CAN) data data link connector, white 16 pin plug, pin 14
Also found white at the Body ECU, black 30 pin plug, pin 13. The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Can Bus Sw N/A
Power Lock lt. green (passenger door lock switch) - Body ECU, black 30 pin plug, pin 9
The Body ECU is under the driver dash, attached to the right side of the dash fuse box. This wire is only needed if the door locks do not function with the aftermarket system while the vehicle is running. All other times just use the factory alarm arm wire.
Power Unlock brown (passenger door lock switch) - Body ECU, black 30 pin plug, pin 10
The Body ECU is under the driver dash, attached to the right side of the dash fuse box. This wire is only needed if the door locks do not function with the aftermarket system while the vehicle is running. All other times just use the factory alarm disarm wire.
Lock Motor red 5 wire driver kick, white 12 pin plug, pin 2
Driver Unlock Motor black 5 wire driver kick, white 12 pin plug, pin 10
Passenger Unlock Motor purple 5 wire dash fuse box, white 36 pin plug (2D), pin 11
Parking Lights (-) yellow - Body ECU, black 30 pin plug, pin 30
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Parking Lights (+) brown + dash fuse box, white 36 pin plug (2D), pin 18
Hazards red - Body ECU, white 28 pin plug, pin 17
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Turn Signal (Left) yellow + dash fuse box, white 36 pin plug (2D), pin 17
Turn Signal (Right) green + dash fuse box, white 36 pin plug (2D), pin 4
Headlight blue - Body ECU, black 30 pin plug, pin 29
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
AutoLights white (interrupt to turn off autolights) - Body ECU, black 30 pin plug, pin 28
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Reverse Light red + driver kick, white 76 pin plug, pin 41
Left Front Door Trigger brown - dash fuse box, white 36 pin plug (2D), pin 35
Right Front Door Trigger brown - dash fuse box, white 36 pin plug (2D), pin 36
Left Rear Door Trigger green - Body ECU, white 18 pin plug, pin 3
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Right Rear Door Trigger green - Body ECU, black 30 pin plug, pin 6
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Dome Supervision green - dash fuse box, rear, white 40 pin plug (2B), pin 27
Trunk/Hatch Pin lt. blue - Body ECU, black 30 pin plug, pin 19
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Rear Glass Pin N/A
Hood Pin red - dash fuse box, white 40 pin plug (2C), pin 38
Trunk/Hatch Release lt. green (rear handle switch) - driver kick, white 76 pin plug, pin 61
Trunk Release Motor yellow 5 wire dash fuse box, white 36 pin plug (2D), pin 9
Fuel Door Release lt. green - fuel lid opener switch, black 5 pin plug, pin 4
Power Sliding Door (Left) N/A
Power Sliding Door (Right) N/A
Factory Alarm Arm green (driver door key lock) - Body ECU, black 30 pin plug, pin 11
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Factory Alarm Disarm purple (driver door key unlock) double - Body ECU, black 30 pin plug, pin 24
The Body ECU is under the driver dash, attached to the right side of the dash fuse box.
Disarm No Unlock Smart Key and ignition
Trunk Alarm Shunt N/A
Tachometer black ac data link connector, white 16 pin plug, pin 9
Wait to Start N/A
Neutral Safety N/A
Clutch Pedal N/A
Fuel Pump red + driver kick, white 10 pin plug, pin 7
Rear Defroster yellow - A/C Amplifier, white 40 pin plug, pin 20
The A/C Amplifier is under the center dash, in front of the center console.
Mirror Defroster same as rear defroster (w/o mem.); MS-CAN (w/mem.)
Left Front Heated Seat purple + seat heater switch, white 8 pin plug, pin 4
Right Front Heated Seat red + seat heater switch, white 8 pin plug, pin 6
Speed Sense purple ac radio, white 28 pin plug, pin 17 or white 20 pin plug, pin 3
On vehicles with navigation, it is at the Display and Navigation Module, white 26 pin plug, pin 18. The Display and Navigation Module is in the center dash, below the radio.
Brake Wire lt. blue + brake switch, green 4 pin plug, pin 1
Parking Brake red - dash fuse box, white 40 pin plug (2C), pin 20
Horn Trigger lt. blue - dash fuse box, white 40 pin plug (2C), pin 24
Wipers red (low), white (high), brown (ignition) + wiper switch, white 10 pin plug, pins 3, 4, and 2
Left Front Window (Up/Down) use factory alarm arm/disarm
Right Front Window (Up/Down) see left front window
Left Rear Window (Up/Down) see left front window
Right Rear Window (Up/Down) see left front window
Sun Roof (Open/Close) lt. blue - brown (function with ignition on only) - map light assembly, white 28 pin plug, pins 27 and 28
Sun Roof (Limit/Close) N/A
Memory Seat 1 blue - seat memory switch, white 5 pin plug, pin 2
Memory Seat 2 red - seat memory switch, white 5 pin plug, pin 3
Memory Seat 3 green - seat memory switch, white 5 pin plug, pin 4
Radio 12V lt. green + radio, white 10 pin plug, pin 4 or white 20 pin plug, pin 1
On vehicles with navigation, it is in the white 28 pin plug, pin 14.
Radio Ground white/black - radio, white 10 pin plug, pin 7 or white 20 pin plug, pin 20
On vehicles with navigation, it is in the white 28 pin plug, pin 15.
Radio Ignition black + radio, white 10 pin plug, pin 3 or white 20 pin plug, pin 11
On vehicles with navigation, it is at the Display and Navigation Module, white 26 pin plug, pin 2. The Display and Navigation Module is in the center dash, below the radio.
Radio Illumination green (parking lights); black (dimmer) +,- radio, white 10 pin plug, pin 10; white 6 pin plug, pin 5
On vehicles with amplifier, they are in the white 20 pin plug, pins 2 and 12. On vehicles with navigation, they are in the white 28 pin plug, pins 3 and 17.
Factory Amp Turn-on N/A
Power Antenna N/A
Left Front Speaker (+/-) pink - purple +,- radio, white 10 pin plug, pins 2 and 6
If equipped, the amplifier is under the passenger seat. On vehicles with amplifier, the speaker wires are red - white at the amplifier, white 12 pin plug, pins 3 and 8. The midrange/tweeter wires are pink - purple at the amplifier, white 10 pin plug, pins 3 and 9.
Right Front Speaker (+/-) green - brown +,- radio, white 10 pin plug, pins 1 and 5
If equipped, the amplifier is under the passenger seat. On vehicles with amplifier, the speaker wires are green - brown at the amplifier, white 12 pin plug, pins 10 and 9. The midrange/tweeter wires are lt. green - blue at the amplifier, white 10 pin plug, pins 4 and 10.
Left Rear Speaker (+/-) green - brown +,- radio, white 6 pin plug, pins 2 and 6
If equipped, the amplifier is under the passenger seat. On vehicles with amplifier, the speaker wires are green - brown at the amplifier, white 12 pin plug, pins 4 and 11.
Right Rear Speaker (+/-) red - white +,- radio, white 6 pin plug, pins 1 and 3
If equipped, the amplifier is under the passenger seat. On vehicles with amplifier, the speaker wires are red - white at the amplifier, white 12 pin plug, pins 5 and 12.
Center Channel (+/-) red - white +,- amplifier, white 10 pin plug, pins 8 and 7
If equipped, the amplifier is under the passenger seat.
Subwoofer (+/-) purple - yellow +,- amplifier, white 10 pin plug, pins 1 and 2
If equipped, the amplifier is under the passenger seat.
Aux. Audio Input Left (+/-) white - black +,- radio, white 28 pin plug, pins 28 and 27
On vehicles with amplifer, they are in the white 20 pin plug, pins 17 and 16. On vehicles with navigation, they are in the white 28 pin plug, pins 20 and 21.
Aux. Audio Input Right (+/-) red - black +,- radio, white 28 pin plug, pins 26 and 27
On vehicles with amplifer, they are in the white 20 pin plug, pins 15 and 16. On vehicles with navigation, they are in the white 28 pin plug, pins 19 and 21.
RSE Video (+/-) red - green (with navigation) +,- radio, white 28 pin plug, pins 8 and 22
The rear view camera wires are red - white at the Display and Navigation Module, white 22 pin plug, pins 5 and 16. The Display and Navigation Module is in the center dash, below the radio.
RSE Audio Left (+/-) white - black (multi-media audio) +,- radio, white 12 pin plug, pins 4 and 5
On vehicles with navigation, the multi-media audio wires are red - black at the Display and Navigation Module, white 8 pin plug, pins 4 and 7. The Display and Navigation Module is in the center dash, below the radio.
RSE Audio Right (+/-) red - green (multi-media audio) +,- radio, white 12 pin plug, pins 2 and 3
On vehicles with navigation, the multi-media audio wires are white - black at the Display and Navigation Module, white 8 pin plug, pins 3 and 7. The Display and Navigation Module is in the center dash, below the radio.
Satellite Radio 12 Volts N/A
Satellite Radio Ground N/A
Satellite Radio Ignition N/A
Satellite Radio Antenna N/A
Satellite Audio Left (+/-) N/A
Satellite Audio Right (+/-) N/A
Item Size Depth Location
Headunit irregular center of dash
Left Front Speaker 6 x 9 left front door
Left Front Tweeter 3.5 (midrange); 1.0 (tweeter) left front dash; left front pillar
Right Front Speaker 6 x 9 right front door
Right Front Tweeter 3.5 (midrange); 1.0 (tweeter) right front dash; right front pillar
Left Rear Speaker 6.3 left rear door
Left Rear Tweeter 3.5 left rear pillar
Right Rear Speaker 6.3 right rear door
Right Rear Tweeter 3.5 right rear pillar
Center Channel 3.5 top center of dash
Subwoofer 7.9 left rear quarter panel
Left Front Headrest
Right Front Headrest
Left Rear Headrest
Right Rear Headrest
Satellite Radio Tuner (built into radio)
 

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Does anyone have a wiring diagram for the 2011 ct with nav and premium sound? To be honest, this post from 12 volt is rather confusing to me as I am trying to tap in at the radio location with a 2 din unit.
 
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