Alpine Car Audio & Video - Recent Questions, Troubleshooting & Support

Should be straight forward. Just get you an aftermarket wiring adapter.

Alpine CDE-7856... | Answered on Sep 10, 2018

Car stereos need a contant 12v power supply to retain memory for tuning and audio settings. It will be the yellow wire on the power harness to the back of your head unit.

Alpine Car Audio... | Answered on Sep 08, 2018

Try holding down the set up button for 2-3 seconds. Press Dn or Up to select the subwoofer mode and the band button activate/deactivate SW function.

Alpine CDE-7856... | Answered on Sep 08, 2018

This is a cool bit of vintage Alpine gear so I get why you'd want to hold onto it. Open the case and take a look at the RCA sockets for mechanical damage. They may only need a dab of fresh solder to fix the bad connections. If the board has a break in it you can add wire traces to the section that has failed to create a new solid connection.

Alpine ERE-G180... | Answered on Sep 08, 2018

What gauge wire are you running from the battery to run your Alpine amp? If the amp isn't able to draw enough current to drive your subs, it will not function properly. It could possibly damage your gear. Also check that your battery and alternator are up to the task. Car audio will load up the charging system in a vehicle if it's low powered. You may need to upgrade your alternator and battery.

Alpine Car Audio... | Answered on Sep 08, 2018

What is this?

Alpine Car Audio... | Answered on Aug 31, 2018

the speaker connections are separate, here is a picture of connections. speaker neg is not the same as power negative or ground. wire according.


Alpine Car Audio... | Answered on Jul 31, 2018

Google (alpine)(RUE-4203)(manual) without parens OR request the manual directly from Alpine.

Alpine Car Audio... | Answered on Jul 10, 2018

Not finding what you are looking for?
Alpine Logo

4,861 questions posted

Ask a Question

Usually answered in minutes!

Top Alpine Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4989 Answers


Level 2 Expert

150 Answers

Jaime Hernandez

Level 3 Expert

2336 Answers

Are you an Alpine Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides