Alpine CDA-9855
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=68987
Printed Date: July 06, 2025 at 2:10 AM
Topic: Alpine CDA-9855
Posted By: Forseti
Subject: Alpine CDA-9855
Date Posted: December 22, 2005 at 9:27 PM
I just bought a Alpine CDA-9855. My question is about the yellow power wire.... its much bigger than the one in the truck harness. Is there some other way I should power the head unit? Use a heavy duty relay?
Replies:
Posted By: boomer_106
Date Posted: December 22, 2005 at 11:10 PM
Yellow should be the memory. I've never needed to use anything else. If you'd like you can probably find a hot spot in the fuse box to power it.
Posted By: Forseti
Date Posted: December 23, 2005 at 7:04 PM
Yellow is main power.... What I am going to do is run a larger wire from the battery and use the stock power wire to flip a relay to power the head unit. So it still shuts off with the key out .....
Posted By: tcss
Date Posted: December 23, 2005 at 7:12 PM
What year and make of truck do you have?
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There is no such thing as free installation!
Posted By: dwarren
Date Posted: December 23, 2005 at 7:14 PM
Forseti wrote:
Yellow is main power.... What I am going to do is run a larger wire from the battery and use the stock power wire to flip a relay to power the head unit. So it still shuts off with the key out .....
You shouldn't need to use a switch, but you can run a fused lead directly from the battery if you want to. The red wire on the radio's harness is the accessory wire, so as long as it is hooked up properly the radio will only work with the key. -------------
Posted By: Hornshockey
Date Posted: December 24, 2005 at 12:01 AM
true; if you wire the yellow wire with a relay that cuts power whenever you turn off the key, you'll lose all your settings (EQ's, radio stations, etc.) every time you turn off the key. Just run a fused 12 or 14ga wire straight to the battery.
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Life moves pretty fast; if you don't stop and look around once in a while; you could miss it.
Posted By: alpine_king
Date Posted: December 25, 2005 at 10:06 AM
just wire it right to the stock yellow wire? it wont hurt a thing.
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1993 Ford Ranger.
Head Unit.Alpine CDA-9831
Front Speakers.Infinity 6010 Reference Series
Amp.Alpine MRD-M1005
Subs.3 Kicker CVR10
Rear Speakers.SPL CS-573
20" Boss 312's, lowered 3/4
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