Memory Question

[enforcer 10+ year member]

I'm putting a cd player in my sister's 95 mazda protege, the cd player is a cheap one i got off ebay. its a nitro bmw-452 and it has a wire for memory. what do i need to connect that to? i have to hard wire the receiver to the car because there is no adapter. thanks

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[wesl56 10+ year member]

eh thats the power... hook it to the +12v

 

[enforcer 10+ year member]

ok there was a power and a memory can i just put em both on the constant battery power?

 

[squeak9798 5,000+ posts]

No, because then the unit would be on all the time and you'd have to manually shut the unit off.

The memory (yellow) wire should be wired to a constant 12V source, as this allows the unit to retain all of it's stored settings such are radio presets, etc.

The power (red) wire needs to be wired to an iginition controlled source, so that it only receives power when the key is turned to ACC or On/Run, this way the unit will automatically turn on when the car is turned on (or to accessory), and turn off when the car is turned off.

So..yes, technically you "could" wire them both to a constant source....but it isn't the proper way to do it.

 

[enforcer 10+ year member]

ok these are the wires that i have in the car, keep in mind the factory plug is gone so im connecting the cd player to the car with just the wires and crimps.

12v constant: blue/red

12v accessory: blue/black

ground: black/yellow

illumination: red/black

LF+: blue/orange

LF-: violet

RF+: white/violet

RF-: yellow/blue

LR+: green/orange

LR-: green/black

RR+: yellow

RR-: orange

which one should i connect the memory wire on the cd player to?

 

[squeak9798 5,000+ posts]

12V constant

Red wire connected to the 12v accessory

 

[enforcer 10+ year member]

ok thanks alot man