I have an Alpine CDA-7892 that the buttons lock up on.

SOURCE: alpine cda 7892 cd output

Hve you checked the mute button??? if so then it needs to see a pro as this is a great unit so it should be serviced only by a great tech. I simply love the alpine seris!!!!!great choice in car audio man!

SOURCE: wireing diagram for a alpine

Good Day,

Red is ignition
Yellow is constant hot
Black is ground
Gray wires are front right
White wires are front left
Green wires are rear right
Purple wires are rear left
Blue is power Ant if equipped
Orange is ilumm

Make sure you use the proper wiring harness for your vechile.

Hope this helps

SOURCE: i bought a 2002 alpine cda-7892 cd radio i need wiring manual

just run the rca wires from the back of your radio to your amp as well run a direct power wire from your battery to your amp then run a ground wire somewhere on your cars metal surface look for a bolt that you can loosen to whrap the wire around then run a wire from your fuse box tap into a fuse socket that is only powered when the ignition is on you can buy a complete amp wireing kit at pepboys or walmart that will come with instructions good luck....

SOURCE: I got the alpine cda 7892 head unit. I hooked it

Take it back.

SOURCE: How can I get my ipod to work on the Alpine

Ai-NET/RCA Interface cable (KCA-121B)
Converts the changer port to RCAs... then an RCA to female 3.5mm female adapter.
Or an FM Modulator.

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