Mini convertible 2014 reversing lights at the bottom of my rear bumper has four wires blue/white, green,black,and brown which is negitve and which is positive I'm fitting a reversing camera, cheers

SOURCE: Trying to fit G202 electronic

The colour coded wires seem to differ at randomn. To identify the cables:

Dizzy:- use a multimeter set on ohms.. When you measure about 3 meg ohms, your red probe is on the +ve wire and the black probe is the signal to the coil.

For the coil, it hard to measure the primary resistance so the general convemtion is looking at the pins on the coil with the taper at the top, the +ve is on the right and the signal (coil -ve) is on the left. Sometimes you'll notice one of the wires on the coil is a thicker gauge, which is generally the +ve.

SOURCE: 1998 dodge ram 1500 4x4 stereo wiring

glad you posted what colors you do have , cause 2 resources didn't match ,actually 3 , i did find a match to your colors was a 97 year model premium radio, so we have a match .....

black/ light green = ground
dark green = left front spkr +
purple = right front spkr +
blue/white = right rear spkr -
brown/blue = left rear spkr -
brown/yellow = left rear spkr +
blue/orange = right rear spkr +
black/yellow = park lamps
brown/red = left front spkr -
orange = dimmer signal
pink = fused battery +
green/red = radio choke relay
red/white = fused ignition
blue/red = right front spkr -

cheers

djmac62 is also an excellent answer

SOURCE: needing wiring diagram for 1991 dodge dynasty le

here is what I found:
http://www.the12volt.com/installbay/stereodetail/715.html

SOURCE: Renaulkt Scenic Parking Sensor fitting

use a test light and put in reverse test each wire to see which one comes on

Jeffrey Turcotte

• 8991 Answers
• Posted on Aug 28, 2010

SOURCE: Im installing a

There may be extra wires you don't need. The basic set of wires on the radio is 4 pairs of colored wires--one black-striped and one plain for each speaker. Yellow is usually accessory power, red is hot, and black is ground. Some additional wires may be one for a power antenna, one for an external amplifyer, and one for facelight (in case it will run on dimmer)
The car should have the following corresponding wires:
Radio 12v--- orange
Radio Ground--- black
Radio Ignition--- yellow
Radio Illumination--- brown
Dimmer--- gray
Power Antenna--- pink (if you have one)
LF Speaker +/- tan - grey
RF Speaker +/- lt green - dk green
LR Speaker +/- brown - yellow
RR Speaker +/- dk. blue- lt. blue

The car or radio could have additional connectors, such as for a subwoofer, CD changer, etc.