hey guys, i swapped my kenwood stereo from my old cavy to my new one. i realized on the harness theres a purple and black wire. it comes out of the part that plugs into the kenwood stereo and its not being used for anything. does anyone know what its for?

With Car Audio a purple wire with a black tracer is a right read negative speaker wire.

Yellow - Constant 12 Volt (battery)
Red - Accessory 12 volt (switched) only 12 volts when car in accessory or on position
Black - Ground (chassis)
White/white with black stripe - Front left speaker (black stripe is negative polarity)
Gray/Gray with black stripe - Front right speaker (stripe negative)
Green/green w/ black - rear left
purple/purple w/ black - rear right
solid blue - power antenna (not all have this wire)
blue w white stripe - remote turn on (used to turn amplifier on or power antenna)
yellow w/ black stripe - mute (for cellphone handsfree kit)

Thanks a bunch! I figured it had to be that, with both cars I've had it in, the right rear speaker didn't work. I was in a hurry when I installed it so I didn't fix it, but it's good to know that's why my speaker isn't working. Glad I paid a "professional" shop to install it for me. Thanks again.

teal wrote:With Car Audio a purple wire with a black tracer is a right read negative speaker wire.

Yellow - Constant 12 Volt (battery)
Red - Accessory 12 volt (switched) only 12 volts when car in accessory or on position
Black - Ground (chassis)
White/white with black stripe - Front left speaker (black stripe is negative polarity)
Gray/Gray with black stripe - Front right speaker (stripe negative)
Green/green w/ black - rear left
purple/purple w/ black - rear right
solid blue - power antenna (not all have this wire)
blue w white stripe - remote turn on (used to turn amplifier on or power antenna)
yellow w/ black stripe - mute (for cellphone handsfree kit)

No Problem. You can thank me by posting a pic of the deck in the dash.