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
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Many car stereos have more new connections that MP3 playerslike the iPod can be connected and played through the stereo. For new carradio, you only need to connect the device and the MP3 player. If you have anold stereo, connect your iPod or connect a 3.5 mm stereo cable or FMtransmitter. Connect iPod directly to the stereo with a stereo cable willresult in better sound quality on the FM transmitter, which can be interruptedor static signal.
AUX 1. Find an AUX port. The AUX is a hole, only small to belocated on your car radio face. (The size is perfect for connecting headphonesor an auxiliary cable.)
2. Connect the 3.5 mm stereo cable into the hole in front ofyour car.
3. Connect the other end into the hole stereo AUX jack /headphone jack on top of your iPod.
4. Connect your iPod.
5. Activate the AUX input. This will be different for eachcar. You may need to field through your input options (e.g., FM, AM, CD, etc.)to access the AUX. Or you may need for your stereo pressing the Menu button.Then, the options for auxiliary input field to the AUX input as possible.
6. Find a song on your iPod and press the Play button whenthe auxiliary input is activated. If you do not hear anything, make sure thevolume on the iPod device and radio. If the iPod is playing your song, you'llsee the song progresses on the iPod screen.
FM Transmitter 1. Find an FM transmitter that is compatible with the iPod.So let your FM transmitter near your car radio.
2. Connect the iPod to the FM transmitter.
3. Tune the radio to your car radio has a frequency thatonly static, then the vote of the same frequency channel using the buttons +and -.
4. Connect your iPod. Then a number and press"Play." Make sure to turn all your volume on your iPod. You should beable to use his music. If not, find a new frequency until you find one thatworks with the iPod and the transmitter.
Setting the AUX Mode (V-Link)
AUX IN ON / AUX IN OFF (Initial setting)
You can input TV/video sound by connecting an optional Ai-NET/
RCA Interface cable (KCA-121B) or Versatile Link Terminal (KCA-
410C) to this component.
You can change the AUX name display when AUX ON is set. Select
the AUX name by pressing g or f. Then press BAND.
If the KCA-410C is connected, it is possible to select two AUX
• Via KCA-410C, up to 2 external devices with RCA output can be
connected. In this case, press SOURCE/POWER to select AUX
mode and then press BAND to select your desired device.
This is the part you need..its an adapter for Alpine stereo..its called the ainet to rca.. then all you need to do is get a stereo jack cable to rca and plug the stereo jack cable in to the ipod and rca's in to the adapter..it plugs on left side of back of the unit if you are looking at it from behind
Your problem stems from the fact that the CDA-7892 is not equipped with an RCA aux-input jack. If you're plugged into RCA connectors at the back of the head unit, they're outputs, not inputs. The sound you hear is just feeding back through the outputs and into the head unit's amplifier.
If you want to play your iPod through this head unit, you need to purchase either the auxiliary input adapter (KCA-121B) or iPod adapter (KCA-420i).