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Does the unit need a permenent live supply - Car Audio & Video

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The car stereo he need it to store the radio stations and to start the cd in the last track he are playing,but he cames with a wire specifically for that always be a yellow one in most of the brands,and the red for the switch power.

Posted on Apr 13, 2008

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Hi I've purchased a new double din stereo for my vw sharan 02 reg plugged it in and it's permenantly live any ideas


Check colour coding off old unit plug too new unit plug sounds like acc wire is in wrong position for your model. Put stereos together an check loom from actual deck should have a plug on end make sure both same, if stereo has no plug from it an you plug loom into rear of unit then wrong stereo given an you will need service manual to correct wiring positions.

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it sounds like the radio has lost it's permenant live power supply , follow this link for the installation manual with wiring diagram, keep me posted if you wish
Dual XDMA460 Owner Manual

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I need to know what wires are for what on my Pioneer Head unit model number deh-p2900mp.


black=negativered=live yellow is for memory witch should be conected to a permenent live blue is for electric areal and the rest are for speakers

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I am installing a new after market DVD player. The old device had only 2 wires connected to a plug. The new player has 3 wires. a. Ground b. Power (on and off when key is on) c. Yellow battery (this...


you will need to reset all info each time you power off the unit if you dont connect thas feed, and in some units will not work fully, your car should have a switched power feed from the ignition switch and an aux ( permenant feed ) if not that u can just run it from any permenant feed inc the battery

Dec 24, 2009 | Car Audio & Video

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Amp slow to kick bass in.


it sounds like you havnt got the memory live conected on your hea duit or it is conected to an ignition live this is no good it needs to be conected to a permenent live to ensure the memory has power at all ties of it coulb be that the amp needs adjusting for low volume use
to set up a sub you turn up the volume to the required level then adjust the amp acordingly hope this helps ben

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I have a Ripspeed DVD-730B head unit for my car. its all installed but when trying to play a dvd it displays a message sayin: do not watch while driving and then only plays sound, no picture. how do i...


if the unit was installed with a handbrake lead properly it will only get picture with handbrake on,try taking that wire off and connect it to a permenant positive like the permanent live to the head unit,so the unit thinks the handbrake is on, or if it wasnt installed properly and that wire is somewhere else like a permenant negative then the unit thinks the handbrake is always off hence no picture while driving,hope this helps :-)

Mar 13, 2008 | Televison & Video

1 Answer

Restarts Unit/Clock Every time car turns off


Hi the problem is due to it been wired in wrong their should be two live wires coming from the unit one is permenant live this stores the time and any setings you change and the other live is main live that turns the unit on when ignition is on.
What you need to do is locate these live wires they will either be wired up to one live wire coming from the car this causing the problem you need to have one live wire going to live auxilary and the other should goto a permanent live wire.
The permanent live wire is the one that stores the time and setting etc it usually an orange wire and the permanent live wire is usually red.
What you can do is use search engine and look for wiring diagramme for your unit this will show you whats permanent live and what aux live hope this is some help.
If you are unsure let some one look at it for you its only five minute job thats all ok

Feb 26, 2008 | Car Audio & Video

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