I got this unit as a thank you gift for installing another unit for a friend. I connect the acc line to the yellow line on unit and I connect the constant 12v+ to the red line and the unit functions perfectly, but will not hold settings after being switched off. I connect ACC 12+ to red line and constant 12+ to Yellow and unit will not power up at all. I connect either source of 12+ to either line and leave the other line disconnected and unit wont power up. Both lines must be connected as in my first discription on the unit will not power on, but this leaves me unable to retain memory settings. I have no history on the unit so I am assuming perhaps it has been shorted at some time messing up the settings. I have tried resetting the unit hoping that would fix it, but no luck. Any other suggestions?
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Re: Memory hold on CDX-CA400 CD Player
The correct wiring is constant power on the yellow wire, switched power on the red wire. I'm not certain why you weren't able to get it to work in this configuration; the unit needs power on both wires before it will turn on, but if you lose power on the yellow wire the settings will be lost.
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Hi:) The yellow goes directly to the battery posative and the red goes to the ACC on the KEY switch if the radio is not connected to the posative ACC wire on the Key switch you will have no Radio at all the yellow is just for the radio's Memory and the CD motor and eject.
Connect black to earth or battery negative. Connect red to battery positive or the acc lead from your ignition switch. If connected to acc the unit will power down when the vehicle is switched off. If connected to battery positive it will remain on irrespective of ignition switch position. Connect yellow to battery positive for memory power. The moment this lead loses power all the settings/memory on the unit will be lost. Leave a comment if you require further assistance
The optic inside the CD player may be dirty or damp, this is the part that reads the data from the cd, you can try cd cleaning discs or you may have get an engineer to open it and clean it with an alcohol swab. The optic could also be faulty which will be cheaper to buy a new cd player.
Should be a blue wire with a white stripe in the plug that goes into your unit if its missing take the harness to bestbuy or an audio shop and they can prolly stick a wire in the empty spot. hope this helps you.
You should check with Car Toys or Best Buy but you will probably need an adaptor and a wiring harness. If your doing it yourself your going to need to know how to get the stock radio out and the wiring diagram for the Aveo. Sometimes you can find the wiring diagram on Google by searching for it but usually finding diagrams for 2008 vehicles takes a year or two before it becomes available.
If your CD player has a tuner in it already you shouldn't need one. If it doesn't have one, that presents some other options.
The problem is in the installation,you need to connect the YELLOW wire to constant power line,this is the wire it keeps the memory for you radio.
The RED wire is connected to the ignition key so when you remove the the key the radio shut off