Question about Audio & Video Receivers

1 Answer

1998 beetle installing new radio but yellow and red wires always hot even with ignition off

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I believe you are supposed to disconnect the negative on your battery, but only if you have a memory saver plugged into your cigarette lighter as to not lose any vital computer settings. then replace your stereo and plug the negative back on to your battery and remove the memory saver.
I've been researching about replacing the stereo because mine has fallen apart and i've just ordered a new one plus the ipod connecting kit.

Posted on Mar 12, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

ON MY DEH-1300 MP CD PLAYER DOES THE RED WIRE GO CONECTED TO CONSTANT POWER OR IGNITION POWER? DOES THE YELLOW WIRE GO TO RADIO POWER?


Pulled this directly from the users manual. It states what wires should come from where. Hope this helps you...25306399-wombcqmas1scjv5ujbg2n2bx-3-0.jpg

Dec 04, 2014 | Pioneer Deh-1300mp Cd Receiver With Mp3...

1 Answer

Jvc kw avx840 frozen on telephone screen. Press reset and everything works fine again until either detatch facia or switch off ignition.


Sounds very strange ... I have the exact same set. Try removing the Bluetooth dongle and re installing it again and see if this helps. Is this a new install? You r ground is good right? to the frame not just a black wire from old stereo you replaced?

Apr 21, 2014 | JVC Kw-Avx840 7 Double-Din Multimedia...

1 Answer

Postive and negitive wires


Yellow wire - goes to constant 12v
Red wire - goes to Ignition switch
Black wire - goes to earth (screws into metal bracket behind dash)

Jan 22, 2013 | Kenwood Kdc-152 Car Stereo In Dash Cd...

1 Answer

I have a mazda mvp 1993 v6 and i need what each coler and what eachean for a radio help me


If this is a new radio you are installing, these are the existing Mazda connections:

In joint box: BLU/BLK wire from 15A CIGAR fuse (accy/run power); BLU/RED wire from 15A ROOM fuse (always hot power).

LF speaker: RED and RED/BLK; RF speaker: RED/YEL and ORG/BLU (or RED/WHT); LR speaker: BRN and BRN/WHT, RR speaker: BRN/YEL and BRN/BLK; L door woofer: GRN/BLK and GRN/ORG; R door woofer: GRN (or GRN/WHT and GRN/RED

Sep 27, 2012 | Dual New Xr4115 Mechless Digital Media...

1 Answer

Which wires do I use for the acc/battery on Dodge Dakota for Radio


One wire stays hot all the time (yellow) and acc is only hot when the key is on. you should be able to find the wires in the original wire harness to the old radio with a test light or a meter.

Jun 09, 2012 | Sony Cdx-gt56ui In Dash Car Cd Player W...

1 Answer

Wiring diagram for 1999 dodge durango


1999 DODGE DURANGO
4DR SUV

Audio/Mobile Video
WIRE COLOR POLARITY LOCATION
Battery RED/BLUE (+) RADIO HARNESS
Accesory RED/WHITE (+) RADIO HARNESS
Ground N/A
Illumination BLACK/YELLOW (+) RADIO HARNESS
Dimmer ORANGE (+) RADIO HARNESS
Amp Turn On DARK GREEN/RED (+) RADIO HARNESS
LF Speaker (+) DARK GREEN
LF Speaker (-) BROWN/RED
RF Speaker (+) BROWN/YELLOW
RF Speaker (-) BROWN/LIGHT BLUE
LR Speaker (+) WHITE
LR Speaker (-) DARK BLUE/RED
RR Speaker (+) BROWN/WHITE
RR Speaker (-) BROWN/ORANGE
Amp Location PASS KICK PANEL
Steering Cntrls NO
Speed Cntrl NO
Radio Security YES

May 10, 2009 | Audio & Video Receivers

1 Answer

Car radio not saving stations but have used car loom from skoda to roadstar head unit ,so iso plugs go straight in and eveything works but take out keys stations are lost and cd,s not remembering where...


My dear friend all the stereos got a two cables to feed the stereo the red put on the ignition wire and the yellow on a direct source to the battery positive lead maybe you don´t put the yellow one correctly.Good luck

Aug 25, 2008 | Audio & Video Receivers

3 Answers

Car stereo problem


Some units also have an ignition wire that must be hot for the unit to turn on. Other than that, I can't think of anything else other than a bad unit.

Hope that helps...

Geno

Apr 03, 2008 | Audio & Video Receivers

3 Answers

96 dodge neon radio not working


Hello Jim,

Not sure where you are measuring your "good" 12vdc voltage(s) from, as with newer radios there are actually 2 +12vdc voltages you need to have otherwise the radio will not power up?

Also - your main car fuse block fuse for the switched ACC may be bad if you are only hooking up the new radio HOT 12vdc wire to the wrong batt source. I'm not there to actually see what you are or are not doing right or wrong.

Are you measuring it at the fused YELLOW wire lead (as in ALWAYS HOT, or as in connected to BATT 12vdc unswitched power source only), or measuring it at the fused RED (connect to TURN ON +12vdc ACC only), or at both ?? VERY IMPORTANT here.

Big difference and here is why - as both of these fused +12vdc sources have to be connected to the proper voltage source or the radio won't turn on.

The YELLOW fused batt voltage source is always ON, so it can remember your radio's settings in the memory, and also allow power to the CD player part of the radio so so as to be able to accept a CD even with the Ignition switch to the OFF position.

ALSO - that YELLOW unswitched +12vdc wire lead has a FUSED noise FILTER suppressor box (BLACK in color), and there is usually a 250V 5A fast blow fuse inside that marked suppressor box as well. NEVER replace the factory fuses with a higher value, as this will only cause more circuit damage if there is a possible short in that circuit leg.

The RED fused batt voltage source is IGNITION switched so when you leave the radio ON - but turn off the Ignition switch - the power is cut off to the radio so that the batt doesn't run down. Hope this makes sense to you. There is usually an in-line 250V 1A fast blow fuse in that marked fuse holder.

Both fuses have to be good!!

There also has to be a GOOD ground return - as in a good solid connection! Dirty grounds can be a high resistive point, and actually impede current flow to the point where some electronics will not work at all. You can still read a static +12vdc batt voltage, but NO current is going to flow in the circuit. I see it happen all too often esp with dirty batt connectors in the engine compartment.

Seeings your OLD factory radio was some ~12 years old it probably failed from OLD AGE. Possibly?

If it's a higher wattage unit it may have taken out the 5A fuse in the YELLOW +12vdc lead. Again from old age - as when the older the unit gets sometimes it tends to draw more circuit current, as from wear and tear on the CD player part, esp if you play a lot of music CD's in it. Same if it's a Cassette/Radio player combo. Then again - it could still be good, but you are maybe still overlooking a blown fuse like in the "ALWAYS HOT" YELLOW lead??

Chances of getting a 2nd bad after-market radio are pretty slim odds wise. Unless maybe that after-market was bought in a USED condition? If that's the case it too may be bad. You might have bought an AS IS LEMON in that case.

Depending on where you bought the after-market radio from you might want to take it back and have them check out the "possibly defective" radio there at the store. If they can do that there? If it checks out good at the store - then you are definitely doing something wrong at home!

If any + or - wiring leads were reversed in doing your DIY upgrade installation then the 2nd radio is history as well. Very important to NOT reverse polarities!!

These hookup guidelines and hints should help solve the problem, as I can't see anything else other then possibly a bad AMP if you had a really high powered car stereo system. You never said either way??

Hopes this helps?

Best regards,

Frank


Mar 15, 2008 | Audio & Video Receivers

1 Answer

Rewiring an old pioneer stereo.the radio was installed where it powers without the ignition being on.the battery was draining. figured it had to be the radio. pulled radio. the red power(acc wire) was...


hello...if you are sure that the red wire is acc it should be connected to the acc connection of the ignitionkey.or maybe the lighter positive...and the other to the battery"always 13.8 v"...then the memory will function properly of the radio and you will not drain your battery...please tell me what happens...good luck ...Ron

Mar 07, 2008 | Audio & Video Receivers

Not finding what you are looking for?
Audio & Video Receivers Logo

Related Topics:

48 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio & Video Receivers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

The Knight
The Knight

Level 3 Expert

68352 Answers

yadayada
yadayada

Level 3 Expert

61168 Answers

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

Answer questions

Manuals & User Guides

Loading...