Question about Alpine CDA-9855 CD Player
Hi I use an auxiliary input wire (KCA-121B) with this stereo. How ever this inout is very noisy (static, some times varies with RPM read on). In all other modes of operation the stereo has a cristal clear sound.
There are two things I plug in to the stereo one is my navigation system, NUVI 660 and the noise can be heard at half level and it intensifies if I touch the screen, when playing music the noise is not noticeable, the sound quality is good and the full range can be heard from base to treble quite well. The other device I would like to be able to use is nokia N81 phone, how ever when I plug it in the noise is much more pronounce and can be heard while playing music via phone through the alpine unit. Noise intensifies much more when moving a hand over phones screen, the phone has no touch screen functionality. The quality of music sucks.. and after being disgusted with this I plugged my nuvi back in the sound quality deteriorated no base can be heard, and static noise is variable with rpm. Leaving auxiliary wire unplugged for a couple days remedies the situation for nuvi, but he phone can not be used satisfactory. The phone works fine with other devices, like home theater system, headphones and computer speakers. I should say that my pervious phone (nokia 5300) worked fine the unit, by fine I mean on the same level of bearable noise as the navi system. Any Ideas? Is their a filter I should try to use?
Sounds like what you are experiencing is feedback. Go to any local audio store and ask for a ground loop isolator. It is in lehmens terms a noise filter. Basically it is a go between your device and input via RCA. See if this takes care of the problem. Good luck
Posted on Nov 17, 2008
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Posted on Jan 02, 2017
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