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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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
I work at a stereo shop in Cali and it's can be some thing verry easey check your radio memory fuse. this can be found under your dash or under your hood. check all your fuse, it mite not be lable Radio, try acc, dash light, opt. these will be your best bet. Is your radio a factory unit or after market? If after market check to see if your unit haves a fuse in line on the Yellow wire. I hope this help please let my know if you need more help.
There was probably a bad connection to the power supply. There are three wires. RED is battery(12 volts at all times)YELLOW or ORANGE is acc.(12 volts when key is in acc position) BLACK is ground(connected to any metal part of the car). Pull out the stereo and make redo these connection and makes sure they are right this time.
Use a voltmeter (VOM) to find 12v wire always ON, this connects to the receivers YELLOW wire. Then use the VOM to find a 12v wire ON with Ignition, this will connect to the RED wire on your unit, Then use the OHM function on the VOM to find a suitable GROUND, this will connect to the BLACK wire on your unit. The ACC wire is for activating a power antenna.
I am about to sell one on eBay - here are the connections from the installation paperwork and connector that I have:
Top row, left to right:
White - Front Left (+)
Green - Rear Left (+)
Purple - Rear Right (+)
Gray - Front Right (+)
Blue/White strip - AMP REMOTE (Max 0.3A)
Blue - ANT REM (Power Antennta Remote) (12V, Max 0.1A)
Red - Power (Accessory)
Black - Ground
Bottom Row, left ot right
White/Black - Front Left (-)
Green - Rear Left (-)
Purple - Rear Right (-)
Gray - Front Right (-)
Yellow - Power (Battery)
One of the BLANKs is for the "Light Blue - ATT (attenuation for car phone)", but it is unclear which one. This wire is not on my connection block...
The circular BUS line to the right of the terminal block is apparently for linking to a CD/MD unit (cable supplied with unit)
The Blue 3.5mm socket is for the RM-X45 Rotary Commander (which attaches to the indicator lever)
If there is no ACC power line in the car, do not connect the red lead.
Ensure the power select switch on the bottom of the unit is in the B position, then press the RESET button (behind the faceplate).
This means that the display will be off when the unit is not in use - avoiding a flat battery risk.
(Posn A is for normal use, with red line on ACC)
The RESET buttom should be pressed after installation, before initial use.
The problem is most likely in the wiring to the ignton switch keyed power line wich will possibly be yellow.How ever To be more percise the wiering diagrams for the car and head unit would be nessary.if this could be supplied an answer would easily be supplied.