Question about Alpine CDA-7845
I instaled an alpine cda 7845 cd player today. I cant get the sub output to work...I need the owners man for help..If you can help me that would be great....
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Posted on Jan 02, 2017
What kind of car did you install this in? Did it have a factory radio in it? If I had to take a guess I would think that there is a factory amp that you may have hooked the blue wire from the alpine deck to. If this is the case when you switch to CD the alpine deck turns off the power to the power antenna lead(blue wire) and thus your factory amp. If this is the case hook the factory amp turn on to the blue and white wire and you should be good to go.
Posted on Sep 03, 2007
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