Battery wire on Pioneer 2000 MP is yellow....what is the memory wire?

There is a wire not hooked up to Constant power so you have no memory In the Radio. The Yellow wire on this unit is the constant power and needs to be hooked to 12v. Hope this helps.

The yellow wire is your always-on power, so the clock and other settings are saved.

Here's the manual.

Make sure the yellow wire is going to a source that is still hot after the key is turned off.

The YELLOW wire on the back of the stereo is either not connected properly or it has a bad connection. The Yellow wire is a memory wire and needs constant power from the battery. Also it is +.

Hope this helps.

The memory is usually yellow or blue on pioneer radios.


Good luck

Car stereos typically have an "ignition" and a "battery" wire. The ignition wire is connected to your ignition switch, and only supplies power to the stereo when the car is turned on. The battery wire is connected directly to the battery, and always supplies electricity to the stereo -- even when the car is off. This maintains presets, clock, and other settings in your stereo.

It sounds like your battery wire was either not hooked up, or has come loose. On your stereo, a Pioneer, this wire is yellow. Locate the yellow wire on the wiring harness on the back of your stereo. This wire should be connected directly to your battery (or another source that gets constant +12VDC).

hi mate,
the cd player consists of 3 types of wires, 1 for negative, 1 for memory- the yellowcolor wire, 1 positive-the red color wire. you must connect the memory wire(yellow) directly to the car battery so that the battery constantly feeds electric current to the player to store your bookmarks or whatever you program it. the red wire must be connected to the ignition barrel( which means your key starter). the negative(black) must be connected to the negative terminal of battery.

Switch the ignition and battery wires.

yes you can. but you risk battery drain in the long run. the ignition switch provides that feature for you... doesnt the old head unit have the wire for that? (red and yellow)

right rear- purple wires
left front- white wires
right front- gray wires
left rear- green wires
BLACK STRIPE NEGATIVE ON ALL
red- 12volts switche
black- ground
yellow- 12volts constant memory