Red - 12 V Ignition/switched (+)
Black - (-) Chassis - or To Battery Ground
Blue/White - Power antenna, or amp remote.
Yellow - Constant hot 12 V (+) To Battery
Brown - Memory - Constant Hot 12 V (+)
Speakers:
White - LF speaker +
White/Black - LF speaker -
Gray - RF speaker +
Gray/Black - RF speaker -
Green - LR speaker +
Green/Black - LR speaker -
Purple - RR speaker +
Purple/Black - RR speaker -
All car stereos have to have a fuse. In the case of Pioneer the fuse is in the rear of the unit below the wiring plug
try this link
If you do not have a wiring harness for your after market deck, then go out and get one. There cheap and will save yourself alot of time cutting and trying to match your speakers to the deck
color code of car stereo wiring
http://www.modifiedlife.com/request-a-hyundai-car-radio-stereo-wiring-diagram/
What is the wiring diagram for the car stereo on a 1997 Ford thunder bird
colar code for sony stereo car
http://www.modifiedlife.com/car-stereo-wiring-diagrams-and-car-radio-wiring-diagrams/this is the best site for diagrams for stereos, enjoy!!!
red
http://www.modifiedlife.com/2005-hyundai-accent-car-stereo-radio-wiring-diagram/
The power used by Pioneer brand car stereos is variable depending on the specific model of stereo. For example, Pioneer stereos use as little as 5 amps and as much as 12.
Car stereo wiring color codes for a Mustang can be seen on a diagram. The diagram may be found in an owner manual or request from the stereo company.