GolfGTIforum.co.uk
General => Car audio => Topic started by: andyhayward on 26 March 2007, 13:42
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Hello
I currently have my stereo powered direct to the battery, but I would rather it throught the ignition. When I conect the wires in this way I get a beeping noise back throught the speakers and no power to the stereo. Is there a blown fuse somwhere, if so which one?
Any help would be greatly appreciated.
Thanks
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thats strange, what car, and what stereo?
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Thanks for your response,
The stereo is a sony and it is in a Mk4. I have tried a different stereo and it does the same thing.
Cheers
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wiring the stereo direct to the battery is usually done to solve or diagnose problems of your kind, it removes the car out of the equation. It becomes just a battery powered radio, so it cannot be anything to do with the car fuses or wiring. Its much more simplified this way. unless the wiring to the battery or earth is dodgy i cant see how this problem is caused. ( even then i have never heared of this problem) how do you know its wired direct to the battery, try replacing the wire. was it another sony stereo you tried?
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Thanks,
I thought it was direct to the battery because I did not need the ignition on? The other stereo I tried was an Aiwa. To be honest its not that much of a problem, so there's not an obvious fix I can just live with it.
Cheers
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ah, na just because it works with the ignition off doesnt mean this, a good indicator but it could be why you are being caused problems. you say you can live with it? so does the stereo work sometimes? if so how do you make it work. if you can be bothered take the HU out and post back how the red and yellow wires connect together, if that makes sense, they will be joined at the back of the stereo ( in a few places!) and at some point there will be little clear rubber covered bullet connectors, the wires will either join............... red - red + yellow - yellow or red - yellow + yellow - red or! red+yellow - yellow (or red!) hope this makes sense, post back what you see and i hope ill be able to help. i understand it may be hard to follow! just see how they meet basically!
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From the HU the order is this, Red + Yellow to Yellow.
The stereo does work all the time, what I am after is it turning off when the ignition goes off.
Thanks.
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Sounds to me like your Permanent live and switched live wires have both been connected to a permanent live supply.
This means that, regardless of what you do with the key the stereo will stay on - because your switched supply is actually permanent, the stereo will not (cannot) switch off with the key.
If it's in a Mk 4 Golf and you still have the iso wiring in place you will have a switched supply there - you need to locate this and connect your switched live wire to that.
If you can post a photo (?) of the looms I can perhaps give you a bit more help...
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yeah steps, thats the way to go, i get you a bit more now andy, so you have tried connecting up red - red + yellow - yellow and this is when the beeping starts yeah? i thought it was all the time!
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How do you add an image to your post?
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If you wanna email directly to me I'll post it up for you
(and hopefully answer the original question!!)
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Me email address might be useful eh??!!
simons@ndmltd.com
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OK, here's the pic:
(http://img.photobucket.com/albums/v146/S11EPS/IMGP0597.jpg)
What you have here is a permanent live supply (yellow) coming into the car and you have both the switched live and permanent live wires connected to it.
Disconnect the red wire from that 2 into 1 connector, so you simply have yellow-to-yellow.
Then match up the two loose halves of the red wire.
Yellow is permanent 12v
Red is switched 12v
Your stereo should now work on the key.
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I have tried what you suggested and that is what causes me to get a beep tone through the speakers and no power??
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That's a little confusing then.
If you get permanent power (regardless of key position) when it is wired as per your photos then the yellow cable must be permanent live (if it were switched live then the stereo would not work unless the key was in)
Yet, connecting it as you should (one wire to ignition live and one to switched live) you get nothing?
The only thing I can suggest is to connect the wires so that the yellow is connected to red and vice versa (effectively swapping positions of the switched and live wires).
There should be no reason for that to work (on the basis that your switched live is connected to permanent and vioce versa) but give it a go.
Instead of disconnecting the red wire from the 2-into-1 connector, dosconnect the yellow. Attach this to the loose red wire on the left hand side of the photo.
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I have had a play around with the wires but it did not work. However I now have a new problem in that I have no power at all going to the HU! Any idea what I might have done.
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Do you have (and know how to use) a multi-meter?
Where in UK are you?
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No I don't have one, or know what it is, sorry. I am near High Wycombe in Bucks.
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sounds like that may have just blew the fuse for the main hu power, in the car, not the HU.
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How do I locate that fuse?
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unless someone on here knows, it will tell you which one it is in the and where the fusebox is in the handbook, if you sont have it the best way i know of finding out is to look around for the fuse box in the car, it will usually be either in the driver or passenger footwell under a panel which will unclip, when this panel comes down or off there may be a diagram of the fuse layout, if not get a torch and start searching for one that looks fried! it will probably be a red 10A one ( maybe blue 15A but i doubt it, it wont be any other colour)
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I had someone at Halfords look at it, it seems that I now have no constant power, but there is power from the ignition. He thinks that somewhere along the way that the constant live wire has broken, he has got it being powered by the ignition only but that means the HU has no memory!!
I guess I will have to get someone who knows what they are doing to fix it properly,
I should have left it well alone!!
We live and learn!!
Cheers
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i really wouldnt power it just from the ignition! its not supposed to be like that, the ignition switch might give up, that wouldnt be good, my mates mk2 did this,it might not but its quiet likely i would say. i wouldnt use the stereo at all, or ever take your car to halfrauds, they dont have a clue, could you not find a blown fuse as this is probably where the wire is 'broken' the wire cant have just broken.
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The fuses are behind a panel which is loacted on the end of the dash which abuts the drivers side door. Open the door fully and you can remove the cover panel of the fuse box and locate and replace the stereo fuse.
The fact that you stereo worked all the time (without the key) in its original configuration means you have/had a permanent live - this wire has not broken or your stereo would not have worked without the key - the opposite of your original problem.
I would ask my dog a question about wiring before I asked the advice of a spotty Halfords worker - I'm sure there are exceptions, but most of them have absolutely zero knowledge other than what's written on the boxes they're selling, hence this nugget of wisdom.
As Tom says, how likely is it that a wire has just 'broken'? If you were closer to me I'd gladly offer to get you up and running.....
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I did find a blown fuse, but when I replaced it there was still no power, so not sure what it controlled?
As I said I think I will get someone who knows what they are doing to fix it.
Thanks for all your advice :-)
Cheers
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oh well, hopefully you should find something extra in your car works now then! hope you get it sorted!
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All sorted now, still not sure what the blown fuse was about???
thanks again for your help :-)
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how did you sort it? or dont you know, was it a 'pro' job?