Okay I have a Pioneer DEH-P5800MP head until and i am looking to install it into my 2001 z. I have the factory radio right now. I bought all the components I need. I have one question and forgive me if this has been asked before, I've tried the search and none of the hits answer my question. I have the metra wiring harness, however the plug for that wiring harness seems to be too big to fit into the head unit?? DO i need some sort of adapter?

What harness did you buy?

Did you read the sticky in the audio & electronics forum?

i bought the metra wiring harness that the sticky said to buy. and yes I have read the sticky.

After re-reading your post.....

You have the harness for the Pioneer head unit, right? The Metra harness plugs into your factory wiring.

i bought the unit from my friend and there is a harness with it. I also have the Metra harness.

i will put pics of what i have in 2 seconds

this is the first time I am installing a new head unit haha ( for anyone who is think what the bloody hell is this $h*thead saying)

the one in my hand is the metra harness the one in the unit is the one it came with

I think you forgot the pictures

huh? i can see the picture just fine

Hmmmm,

Can't see anything with Firefox, Internet Explorer shows a picture should be there, but won't load.

Anyway- it should go like this:

Factory harness > Metra Harness spliced to Pioneer harness < Pioneer deck

Click here for useful info. The colors might not be accurate, but I can tell you that on my 05 I just had to match wire colors. I did use a different brand of harness though.

Both harnesses should identify their wires, just match them up. Your switched 12V line (12V ACC) will need power. I ran mine off the wiper fuse with a fuse tap.