How does the radio work when there is no power?
How does the radio work when there is no power?
It controls the radio for turning on and off. Once it get power, it will release the power from the yellow wire and lead the power enter into the radio to turn on all functions to work. Once it disconnect from power, it will cut the power from the yellow wire, only keep the yellow wire’s power for small memory IC for keeping setting data.
Why does my car radio drain the battery?
If the yellow wire and black wire are connected correct, but the red wire being connected with permeation power, then the radio will drain car battery.
Why does my dome lamp and radio not work?
On the odd chance that the dome lamp and radio have coincidental failures not related to Fuse 12, check some of those other circuits in the last diagram I sent. If glove box, power mirrors, lighted mirrors (in visors), underhood lamp and truck bed lamp work (or any combination of those), it shows the circuit to be powered as it leaves the JB.
Where does the power come from on a CAN bus decoder?
If the unit is can bus decoder controlled device, such as Volkswagen device, you may found out that the red ACC wire is comes out from the can bus box and goes to the radio, instead of direct connect with the original car connector wire. And you may also found out that the can bus box is also gain power from the yellow wire.
Is there a constant power source for a stereo?
Make sure you connect the Yellow wire from the stereo, to the wire you identified as constant power earlier. If you do not locate a constant power source in the vehicles wire bundle, you can route one from the interior fuse box or splice it from a nearby source.
How can I keep the radio on when the car is off?
The “always on” line always has power available on it. This is what would ensure that the settings in the radio stay on when the car is off. If you have connected two power leads to the radio, you may have reversed them. If you only connected one, you probably also need to connect another one that is from a line that is always powered.
Do you have to reset your stereo station every time you reset it?
Once you have the stereo hooked up to constant power, you should never have to reset your stations again. Sounds like a problem in the way the head-unit was installed.
Do you need power line for always on radio?
If your current car has them split out functionally, you may need to wire the always on 12V to your head unit. There are almost certainly two different power lines available to, and likely to be needed by, the radio: Always on. Ignition. The “always on” line always has power available on it.
