I have got a alpine D310R i have not got the wireing harness for my alpine D310R can you halp me to find one for it

The pink/black wire in the Alpine CDA-9805 harness is for Audio Interrupt . The Audio Interrupt feature is activated by grounding the pink/black wire. It appears that certain accessories, such as cell phones, can mute the CDA-9805 by sending a signal to the pink/black wire. Alpine Wiring Harness Diagram + Color Codes - CDE/iLX Radios (techyaudio.com)

Alpine Audio Interrupt feature (the12volt.com)

https://www.repco.com.au/en/in-car-technology/car-audio/facia-kits-and-wiring-harnesses/aerpro-radio-wiring-harness-alpine-to-iso-16-pin-app8alph/p/A9391632#

get a universal wiring harness then you get what every car you have universal harness and plug them together
talk to a car accessory shop about this universal wiring harness for the alpine unit and then ask if you need a universal harness for the car you have .

If you contact Alpine they will be able to tell you if there is an adapter that will plug right into your existing OEM harness. If not then, you'll have to figure out Which wires are which on your OEM harness, here is the Alpine wire code:
Alpine wiring help

HU harness color code pretty much universal.
red=ignition
yellow=battery +
black=ground
blue/white=remote turn on
blue=power antenna
pink/black=audio interupt in (not sure if you have one)
speaker wires
gray=right front
violet=right rear
green=left rear
white=right rear
speaker wire with black stripes is negative.

You will need the wire harness that is designed to connect to the stock stereo. Another option is to just install your alpine stereo in the car since you have the wiring harness for that. You will not be able to wire the harness for the alpine unit and have it match the plug type for your stock stereo.

Hello stoogieprezi,

You should have gotten a plug-in harness with your new Alpine. To avoid cutting or tapping the wires on your vehicle, you need to purchase an aftermarket wiring harness. It appears that the Metra 70-1782 is the correct one for the 1990 Prizm.

Then you simply match up the wires on your Alpine harness with the Metra harness. The wiring color code for the harness is shown on the bottom left of the "description" tab and matches up with the Alpine color code on page 18 of your owners manual.

Hope this helps.

One Of The Wires Should Be labeled Dash Lights That Comes Out Of Your Radio.

Go to the Following website.

http://cgi.ebay.com/Alpine-Power-Wire-Harness-CDA-9884-CDA9884-CDA9847-Z03_W0QQitemZ400020850727QQcmdZViewItem

You connected your blue alpine wire (power antenna) to your blue wire (amplifier remote on) on the BMW harness adapter. You need to undo this, amputate your blue alpine wire (because your E36 has no power antenna) and connect the alpine blue wire with white stripe (remote power) to your blue wire on the harness adapter.

When you switch source from the radio, alpine is shutting off your amplifier through the connected power antenna wire. Since you're not listening to the radio anymore, it sees no reason why it should give it power.

ebay search for alpine wiring harness