How do I wire this all together?
 

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so this is the harness that came with the deck

back of the deck..
there is the antenna slot to the left..i cant fit into this pic.

So my question is, what do I do now with all this?

I don't know what the connectors are in the first picture. I think the solo wire is part of the original stereo's antitheft feature. You don't need it in for the replacement stereo.

The wires in the second picture include the hot wire (for clock and station preset memory), switched power and ground. Maybe the antenna wire is in there as well. You'll have to get a diagram or use a tester to figure out which is which. Brown is usually ground in these cars.

The wires in the third picture go to the thumbwheel fader behind the shifter.

You have a choice of using the front OR rear speaker outputs of the replacement stereo and the existing fader, or using the front AND rear speaker outputs of the replacement stereo and bypassing the existing fader. If you go with the second approach, you have the choice of tapping into the speaker harness downstream of the existing fader by hooking up the each channel (left and right) in a common ground arrangement (does the replacement stereo support this?), or using the existing speaker connectors in the stereo cavity to drive the rear speakers (keep the existing fader centered or full rear), and run new wires to the dash speakers.

Good luck.

Sixto
95 S420
87 300SDL

Update from the UK Haynes W124 manual -

Here are some wire color codes to help you:

- blue = antenna power lead
- red with white stripe = always hot
- black with yellow stripe = hot when key switch is on
- gray with violer stripe = hot when lights are on (not dimmer)
- brown = ground

It doesn't describe the speaker wire pairs as left or right.

Sixto
95 S420
87 300SDL

Update from the W126 CD manual (should be relevant since the stereo units are the same in the W126 and W124 models of this generation) -

connector 1 (picture 2):

- brown = ground
- black with yellow stripe = hot when key switch is on
- gray with violet stripe = hot when lights are on
- red with white stripe = always hot

connector 2 (picture 5):

- blue = antenna

connector 3 (picture 3):

- black = left (-)
- black with red stripe = left (+)

connector 4 (picture 3):

- black = right (-)
- black with green stripe = right (+)

That should be enough. Get to work!

Sixto
95 S420
87 300SDL

In the picture 4, where my wire harness for the deck is, where can I ground the wire (#7) in the car?

Look for a screw or bolt that goes into body metal. Loosen the screw or bolt and slip the spade in place. Or drill a hole into the body metal and get a screw that will fit tightly into the hole. Or tap the replacement stereo harness black wire into the car harness brown wire at the connector in picture 2.

Sixto
95 S420
87 300SDL

Hi, I just want to know if this is correct.

I am connecting the wires from picture 2 to the wire harness from picture 4.

Im grounding the brown to the black wire from the harness.
connecting the black/yellow wire from car to the red from harness
connecting the red/white from car to the yellow fromharness

where does the Gray go to? to the blue antenna wire(#6)?
that blue wire says (ANT REM MAX 0.1A)

The wires from 1 to 4 are the speaker output wires (pic4) right?

thanks,

The gray wire is illumination which your new stereo doesn't need since there isn't an orange wire in the new stereo's harness.

The speaker wires are deciphered in this thread -

http://www.peachparts.com/shopforum/car-audio-multimedia/93817-also-sony-cdx-mp70-wiring.html

The blue antenna wire connects to the solo wire with a female spade lug in picture 2.

Sixto
95 S420
87 300SDL

sixto,
did you mean picture 5?
is that the female connector u are talking about

mark

Sorry, I meant picture 5... if the wire attached to that connector is blue.

Sixto
95 S420
87 300SDL

yup..its blue..

thanks sixto