Question about Alpine CDE121
I installed my Alpine CDE-121 into my car in May. The system has been great and working properly until now (November). Everything lights up and I can switch from Tuner to CD etc. but no sound comes out. I don't know much about electronics, help please!
Some models of some vehicles have a power amplifier that is separate from the head unit. You did not specify what you have your Alpine installed in but you may find the "no sound" issue involves a separate power amp.
Posted on Nov 17, 2013
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Posted on Jan 02, 2017
Disconnect whatever is attached to the BLUE wire at the back of the Alpine deck. Re-connect it to the BLUE/WHITE wire instead. This should solve your problem.
Posted on Aug 13, 2007
If you had to connect the remote amp turn on lead from the headunit to the factory amp turn on lead you may find your problem there.
On many headunits there are 2 blue remote wires 1 for antenna and one for amp turn on. The antenna remote only supplies power when the radio is playing not when playing CD's. If you hooked the antenna wire to the amp trigger then the amps shut down when you play a cd. If that's not it let me know and I will research further.
Posted on Jan 04, 2008
I think you are using an external amplifier,if this is the case,you may be using the wrong remote wire for the amp.
Alpine use two blue wires,BLUE (only) this wire is for the pwr antenna and every time you insert a cd, this pwr line cut out.
BLUE/WHITE STRIPE this is the remote wire that you need to connect the remote of the amplifier.
thanks for rating
Posted on Feb 12, 2008
SOURCE: cannot operate Alpine CDE 9881
Hopefully this will help you out. The manual for the 9881 can be gotten here: http://vault.alpine-usa.com/products/documents/OM_CDE-9881.PDF
Copy the entire line into your browser, and you will have it. Don't forget to save it to your system. It is in PDF format, so if you don't have a reader, pick up one for free here: http://www.adobe.com/
Good luck with the "new" car and radio!
Posted on Jan 08, 2009
actually, chrysler/dodge has factory Infinity sound systems installed. The nice part about these systems is that you dont have to bypass the amplifiers in order to put a new radio in, but simply power up the amp by hooking up the amp turn on wire at the harness. The alpine should have 2 blue wires coming off of the back, one that is solid, the other with a white stripe. The one that is solid only has 12v when the fm/am radio is on (used for power antenna) but cuts off when other sources are used (cd,aux,ipod). My guesses are, you have the amp wire on the vehicle harness (blue) tied into this wire, instead of the BLUE/WHITE wire on the alpine which has 12v as long as the radio is on. i hope this solves your problem, 9 times out of 10 on a chrysler this is it.
Posted on Aug 31, 2009
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