Yellow Wire.
The factory stereo wire colors for a 1977 Chevrolet Caprice typically include the following: the constant power wire is usually yellow, the ignition power wire is often red, the ground wire is usually black, and the speaker wires can vary but commonly include blue and green for the front speakers, and gray and purple for the rear speakers. It's always recommended to verify with a wiring diagram specific to the vehicle, as wire colors can vary by model and production changes.
radio diagramobtain a factory Honda service manual and it will be in there with wire colors. www.ahdol.com will also have wire diagrams for the vehicle for 11.99 Helms and Chilton manual may have them also
http://www.modifiedlife.com/2000-ford-explorer-car-radio-stereo-wiring-diagram/ factory wiring color codes
red wire
You must be careful the factory wire colors are not the same. A blue factory wire is not a remote wire like the headunit. Go to www.the12volt.com they have free factory wiring diagrams. If you need help feel free to contact me
In a standard Ford factory set-up the Escort has an 8 wire / 4 speaker system. Front - Left - White Wire / Front Right Gray / Left Rear - Green / Right Rear - Purple.
The remote wire on the factory radio in a 2005 F150 Ford Supercrew is usually blue. The remote wire is used to connect extra things to a radio that are not already factory installed.
BMW, Toyota, Lexus, VW, and Honda.
The wire colors for a KW-AVX720 may vary depending on the manufacturer. It is best to refer to the user manual or contact the manufacturer for accurate information on wire colors for this specific model.
The standard light fixture wire colors are black, white, and green or bare copper. The black wire is the hot wire, the white wire is the neutral wire, and the green or bare copper wire is the ground wire.
You need to send a single pulse on the unlock wire. I forget what color it is. Xs need a double pulse to unlock.