CDA-7894 ALPINE CD CAR STEREO NO SOUND JUST POPS

Manual states to be sure to press the reset button when you first install and after replacing battery. Online manual at http://vault.alpine-usa.com/products/documents/OM_CDA-7894.PDF

Check the fuses. There's one in your car's fuse panel (usually in the footwell be the hinges of the car door) & one on the back of the head unit. While you have the head unit out checking the fuse, ensure that the power wire is still connected securely and the ground wire has a firm, clean connection to the sub dash (clean metal, no paint). If this doesn't solve the problem, the unit may well have gone belly up. You will need a new one if that's the case. If you purchase a new one, stay away from Dual. It's garbage. I know they're super affordable, but you get what you pay for with that kind of stuff. Pioneer makes really good units and there priced reasonably too. Just a suggestion... Good luck!

I can't find the power wires on my Alpine CDA 7894

You have a problem with the phasing of your speakers. This will happen if on or more of the speakers are installed incorrectly. To solve this, you must check the speakers and find which one of them does not have the positive and negative connected to where it should be. When connecting speakers it is crucial that the speakers (positive and negative terminals) are all connected to the corresponding (positive and negative) speaker outputs of your head unit. Now you can enjoy your sound again.
dreamsystems

Hello, I was able to download the manual - email me [email protected] if you still need the manual!

The Zune is not compatible with your head unit.

Hi my names Josh i was reading some info on your unit. Thats a very nice unit was made in 03 and had alot of really nice features on it however if your looking for fan that unit was not equiped with one that slot in the back is not actually a fan but part of back plate design of the unit.

check the fuses on the stereo and on the car

loose wires a short behind ur reciever when ya put it in

ok when you look at the front of your system there is a button that has a (F) on it press and hold tell stuff comes on the screen then just keep pressing it tell you get to AUX off you should get it from there hope this helps