Does anyone know where I find out what all of the wires do in a wiring harness on the stock head unit? I want to wire in a Hard drive based MP3 player such that inputs for a acura changer/tape player can be used and this input can be selected using the input selection button on the head unit.

 

White/blue-battery(memory)
Yel/red-power(ignition ON)
Red/black-dimmer
Yel/green-power ant lead
Blue/green-front left speaker
Gry/black-front left speaker
Red/green-front right speaker
Brn/black-front right speaker
Blue/yellow-rear left speaker
Grey/white-rear left speaker
Red/yel-rear right speaker
Brwn/white-rear right speaker
Black-ground

I think to do what you want to do, you will have to get the din cable from a cdchanger and splice into those wires.


[Modified by ITR#132, 11:21 PM 1/17/2002]

 

God Damn! You do this for a living, or are you reading off something?

 

I haven't seen the back of the head unit. Does the Din Cable from the changer have a have its own separate connection where the audio inputs from changer enter the head unit?

 

[QUOTE]White/blue-battery(memory)
Yel/red-power(ignition ON)
Red/black-dimmer
Yel/green-power ant lead
Blue/green-front left speaker
Gry/black-front left speaker
Red/green-front right speaker
Brn/black-front right speaker
Blue/yellow-rear left speaker
Grey/white-rear left speaker
Red/yel-rear right speaker
Brwn/white-rear right speaker
Black-ground

i could have used that a week ago. thanks i'll be writing that down now

 

or this:

 

heres another pic


Ron


[Modified by G_S_R, 8:15 AM 1/18/2002]

 

have fun, i dont know if what you are planning is going to work...you would have to somehow wire the din cable into the hard drive based unit...so you would need a power,memory, ground, and how do you plan to play the sound over the din cable...i guess if the hard drive unit had rca outs you could use that, but dont know


good luck though...keep us updated

 

Everyone bookmark this page:
http://integra.cyberglobe.net/caraudio/diagrams/wiring/

 

I found a site that sells adapters and the a clarion one that that has RCA connectors which will connect to the MP3 player nicely but I still have one question. How does the head unit know when there is something connected to the din plug so that it will switch to it when "CD" button is pressed.

 

I used too, couple of years ago. But I did mostly custom auto alarms, and basic head units, speakers, and amps.
Honda wiring has been pretty consistant since 1986.

 

You can go to your local car audio store and buy the din cable adaptor that allows the Alpine Cd changer to work in our cars. I had written down the wires for the din cable, but I have since lost it. Try asking the Car audio installation guys, they may have it.

I am not 100% sure but the power(or ground) comes from the head unit through the din cable to the Changer and the changer sends the signal back to the unit, letting the head unit change over when the cd button is pressed.