I have purchased an Xtrons head unit which I have conected with Autoleads Harness Adpator PC2-75-4 bought from Halfords but the unit wouldnt power on. I took the lot back to Halfords and the unit powers on in the store but back out to the car with the connector and it doesn't power on. I have been advised this is because the SEAT stereo connector doesn't have a permanent live. I have been told I need to run a permanent live from my fuse box to the iso connector. I have been told I could try combining the red and yellow to see if this resolves the issue but this could mean the unit resets every time I turn off the ignition and it wont store my settings. Can some one help me make sense of this? I cant understand why this stops the unit powering on at the moment and why does the factory unit work with the wiring as it is?
The Xtrons troubleshoot page hints at this issue:-
*************************
In general If you have purchased an ISO adapter or your vehicle has a standard ISO connection getting power to your unit should be as simple as plugging the connections together, however there are a few exceptions.
These exceptions will generally present in one or more of the following ways.
-The unit will not switch on
-The unit will not hold the memory function for the time or radio
-The unit will switch on at first installation and will not switch on after the ignition or stereo is switched off
-The unit lights up when reset is pressed but will not switch on
If you are experiencing any of the above or something similar you will need to make slight alterations to how the ISO is wired.
For correct operation the stereo needs to be powered as descibed here
-Yellow Wire 12V permanent
-Red Wire 12V Switched from the ignition (ACC)
-Black Ground
Most commonly this is resolved by "Reversing the Lives" this is simply removing the RED and YELLOW wire and exchanging their position in the ISO . Each pin has a small tab that can be depressed with a small flat screwdriver allowing you to remove the pin from the ISO connection, when removed press the tab out so it will lock into place when reinserted.
*************************
I'm just trying to make sense of this so that I know what to do and connect to which. My in car SEAT connections is as the picture
]
The Xtrons troubleshoot page hints at this issue:-
*************************
In general If you have purchased an ISO adapter or your vehicle has a standard ISO connection getting power to your unit should be as simple as plugging the connections together, however there are a few exceptions.
These exceptions will generally present in one or more of the following ways.
-The unit will not switch on
-The unit will not hold the memory function for the time or radio
-The unit will switch on at first installation and will not switch on after the ignition or stereo is switched off
-The unit lights up when reset is pressed but will not switch on
If you are experiencing any of the above or something similar you will need to make slight alterations to how the ISO is wired.
For correct operation the stereo needs to be powered as descibed here
-Yellow Wire 12V permanent
-Red Wire 12V Switched from the ignition (ACC)
-Black Ground
Most commonly this is resolved by "Reversing the Lives" this is simply removing the RED and YELLOW wire and exchanging their position in the ISO . Each pin has a small tab that can be depressed with a small flat screwdriver allowing you to remove the pin from the ISO connection, when removed press the tab out so it will lock into place when reinserted.
*************************
I'm just trying to make sense of this so that I know what to do and connect to which. My in car SEAT connections is as the picture
Last edited:
