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I've done a search for this, many people with the R34 have done this no problem but I can't seem to do it, this is what I've done:

1. Bought a Pioneer DEH-3350 headunit.

2. Bought solder, soldering iron, insulating tape, wire cutters + wire shredders

3. Removed the radio part of the head unit so I could install the pioneer one.

4. Disconnected negative terminal of the battery and pressed brakes repeatedly to deplete any remaining sources of battery.

5. Downloaded and studied the Nissan 1995+ wiring diagram. http://www.installdr.com/Harnesses/Nissan-Wiring.pdf

6. PROBLEM: Wires did not have same colour as the ones listed for the Nissan parts

7. SOLUTION: I created my own list of colours that represented the relative positions that the diagram had. For example, the A on the diagram was "Gray," my one was orange so I connected the orange to the purple wire of the pioneer headunit wire.

8. PROBLEM: After hours of painstaking soldering, I insulated everything made sure nothing touched, hooked up negative terminal of battery made sure that the headunit was earthed connected it all up and guess what, NOTHING! (Except for a few sparks from the ground wire)

9. PROBLEM: Pioneer head unit will not screw into the factory DIN pocket.

10. PROBLEM: Remote control unlocking works, but LOCKING doesn't work, I have to manually lock it from the driver door.

9. Conclusion: Wasted 300 dollars + 1 day of labour + I now have cut wires that don't work.

Here are some pics below of the terminals I cut off and how I labeled them in colours with respect to their positioning on the diagram.

xbi89f.jpg

<a href="http://tinypic.com?ref=xbi89f" target="_blank"><img src="http://i52.tinypic.com/xbi89f.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

21kf61f.jpg

<a href="http://tinypic.com?ref=21kf61f" target="_blank"><img src="http://i54.tinypic.com/21kf61f.jpg" border="0" alt="Image and video hosting by TinyPic"></a>

This is how I connected up everything according to my colours:

A- Orange

B- Grey with blue stripes

C Black with pink stripes

D - Light green

E- Black with yellow stripes

F - Nothing

G - Orange with black stripes

H - Red with blue stripes

I - White with red stripes

J - Blue with white stripes

K - Nothing

L - Nothing

M - Green

N - Red with white stripes

O - Black with red stripes

P - Blue with yellow stripes

To give an example of how I connected it:

On the diagram it reads: Letter M - Nissan standard colour is pink - New radio colour is yellow

On my list that I created, using the diagrams relative position, (seeing as I don't have pink) M is green for me, so I soldered Green to Yellow.

Urgent HELP needed, also PM me if you want my mobile number so we can discuss.

(I live in Melbourne, VIC)

(CAR IS A 1999 NISSAN SKYLINE R34 MANUAL COUPE 25GT NON TURBO) (STOCK AS ROCK)

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I bought a multimeter and tested each individual wire, turns out, I did everything perfectly but just didn't ground it properly. So I grounded it and it turned on, everything works good but I need an antenna for the radio and my right front speaker doesn't work. Tried switching the wires around but the right front speaker still doesn't work, does anyone know why this is when the old radio worked with the right front speaker?

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