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Double Din Headunit Into A 96ls


Tommy_B

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i found this

Power the new deck:

In order to get power into your new deck you will want to splice into the factory plug near the deck. I supplied from plug R 3C upfront. If you observe the plugs you will see one of the gray plugs that has 14 pin slots but only 10 to 12 wires used ( plugs normally are labeled with factory imprint). This plug has a Lavender wire with a Yellow stripe. It is pin No. 1 and this can be your hot wire. You may use Pin No. 14 which is Brown for your ground(Ground 2) from the same plug.

More Information about this Procedure:

Unfortunately you can not use your SUB anymore after this. I have read ways to, but I feel they are a waste because this procedure by-passes the amp so it is pre-amp, honestly how many watts is your deck.

Your going to use wiring diagrams in order to run wires directly from your deck to the speaker wiring junction where the amp is located and connect hardwire them before they enter the amp. This is easier then running all new wires I feel, and takes advantage of the already installed factory wire.

The wiring diagram is listed at the bottom of this post. It is called If1rap96.pdf (You need a pdf reader to view it. Adobe is free but bloatware I suggest Foxit PDF reader its fast, free, and has less ware on your processor.

In order to access your amp....

If its under the seat go to passenger rear door and look down, you will see a plastic molding at the edge of the seat (Move the seat all the way forward up right) The molding has two squares on it, remove these with a pry tool and remove the two Phillips screws. Now the amp wiring is exposed.

CONGRATS.

1996 Lexus LS400 Amplifire Wiring Information

What you see here is 4 plugs pictured below

These are the four plugs pictured from left to right when you expose the amp plugs.

Connector Plugs Descriptions:

S10 B: White

S11 C: Gray

S12 D: Green

S13 A: Orange

Connector Pin Assignments:

Warning: These pins are my interpretation of the diagram. Please view and double check all information.

Pins:

1- Brown/Black - Ground

2- N/A

3- White - Front Right +

4- Red - Rear Left +

5- Yellow – Rear Right -

6- Pink/Blue – Amp +

7- Black - Beep

8- Red- Front Right -

9- White – front Left -

10- Black – Front Left +

11- Shielded - Signal Ground 1 (goes to CD/Radio Player)

12- Brown/Red Signal Ground 2 (goes to CD/Radio Player)

13- Green – Rear Left -

14- Green – Rear Right –

Pins:

1- Light Green/Black – Woofer + (WOOFER POSITIVE)

2- Light Green / Red – Woofer – (WOOFER NEGATIVE)

3- N/A

4- Brown/Yellow – Signal Ground 4 (to Disc changer)

5- Brown/White – Ground2 (to disc changer)

6- N/A

7- N/A

8- N/A

9- N/A

10- N/A

11- Light Green – CAP+ (to disc changer)

12- Violet – CAP – (to disc changer)

13- N/A

14- N/A

1- Light Green – Front Right + (RIGHT FRONT SPEAKER)

2- Pink – Front Left + (LEFT FRONT SPEAKER)

3- N/A

4- Red – Rear Right + (Rear Door)(RIGHT REAR DOOR SPEAKER)

5- Black – RL+ to Telephone (Rear Door)(LEFT REAR DOOR SPEAKER)

6- Light Blue? – Front Right –(RIGHT FRONT SPEAKER)

7- Violet – Front Left – (LEFT FRONT SPEAKER)

8- N/A

9- N/A

10- N/A

11- N/A

12- White – Rear Right –(Rear Door)(RIGHT REAR DOOR)

13- Yellow – Right Left Negative (Rear Door) (LEFT REAR DOOR)

Pins:

1- Brown – Ground 4 (to CD Player)

2- Lavender/Yellow +B1 (to CD changer) Radio No. 1 fuse 20A

3- Shielded – Signal Ground 3 (to CD Player)

4- Brown – Ground 5 (to CD Player)

5- Lavender/Yellow –B2 (to CD player)

6- Gray – ACC1 – Radio No. 2 fuse (7.5A)

7- Light Blue – Mute (to CD Player)

8- White – HAP - (to CD Player)

9- Black – HAP + (to CD Player)

In order to run the deck preamp your going to splice into sets of wires on this amp. warning this is a long task be prepared. I bought some small suitable gauge wire from the store and went to work measuring the length I need and a little more for room to work with. The main wires you want to focus on are listed in order below.

The main plug you work with is the GREEN plug S12-D.

(You will notice positive and negative are vertically flush)

Left Front

Positive: Pink/Pin 2

Negative: Violet/Pin 7

Right Front

Positive: Light Green/Pin 1

Negative: Light Blue/Pin 6

Left Rear

Positive: Black/Pin 5

Negative: Yellow/Pin 13

Right Rear

Positive: Red/Pin 4

Negative: White/Pin 12

These are your speakers you will need to hardwire directly to your new unit. Remember to work around your seat position rail when installing the wires. I did not go beneath carpet for my install but, I had minimal wire appearance. I went directly from my amp location, underneath my seat rail, to the mid-console, to the din.

Note: The door speakers in this Lexus factory are also 3 holed speakers, inside of a custom speaker din designed by Lexus. Be sure to check measurements before ordering speakers. Max size should be 5.25". Max depth I would guess 3 to 4.5" tops."

this seemed to really help me

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