Scratchin my head on this one.
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Senior Member
Joined: Jul 2011
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From: Eddy, Texas
Scratchin my head on this one.
Hey folks, any and all help would be much appreciated. ...
I'm wanting to put a strip of LED lighting under my dash, and the driver/ pass seats aimed towards the back for a lite illumination in the cab at night. I want to try and hook it to the light switch itself, so whenever my headlights are on the LED lights turn on. I don't really want them to be on all the time, and I also don't really want a switch either. Any idea on which wire to splice into as a hot lead? I just don't know if its a always hot wire or not. I know what I want to do might not be possible, just looking for insight. Again I appreciate the help.
Take care
I'm wanting to put a strip of LED lighting under my dash, and the driver/ pass seats aimed towards the back for a lite illumination in the cab at night. I want to try and hook it to the light switch itself, so whenever my headlights are on the LED lights turn on. I don't really want them to be on all the time, and I also don't really want a switch either. Any idea on which wire to splice into as a hot lead? I just don't know if its a always hot wire or not. I know what I want to do might not be possible, just looking for insight. Again I appreciate the help.
Take care
Technical Article Contributor
Joined: Jun 2002
Posts: 10,511
Likes: 10
From: Under the flightpath of old ORD 22R
So you want them on any time the parking lamps are on, or do you only want them on any time the headlamps are on ?
Depending on which route you want to go, is which wire at the side of the SJB ( Smart Junction Box / cab fuse panel ) you want to splice into.
The other question is the total amp draw of the LEDs.
Usually it is a low amp draw, but I do not want to assume that, not knowing what LED strips you are getting, and if it is 4 of them ( more ? ).
If the load is getting up there, you should use a relay.
At the very least a additional fuse, so if there is an issue with the LED strips you are blowing the fuse prior to the factory fuse or FET.
Depending on which route you want to go, is which wire at the side of the SJB ( Smart Junction Box / cab fuse panel ) you want to splice into.
The other question is the total amp draw of the LEDs.
Usually it is a low amp draw, but I do not want to assume that, not knowing what LED strips you are getting, and if it is 4 of them ( more ? ).
If the load is getting up there, you should use a relay.
At the very least a additional fuse, so if there is an issue with the LED strips you are blowing the fuse prior to the factory fuse or FET.
The way I am thinking is:
Tap the park lamp wire, and run that to a switch then to your leds. So if you the leave the switch on, when you turn the park lamps on the leds will come on. But if you want them off, just flip the switch...
I know you didn't want one, but that is just what I am thinking.
Tap the park lamp wire, and run that to a switch then to your leds. So if you the leave the switch on, when you turn the park lamps on the leds will come on. But if you want them off, just flip the switch...
I know you didn't want one, but that is just what I am thinking.
Thread Starter
|
Senior Member
Joined: Jul 2011
Posts: 102
Likes: 0
From: Eddy, Texas
So you want them on any time the parking lamps are on, or do you only want them on any time the headlamps are on ?
Depending on which route you want to go, is which wire at the side of the SJB ( Smart Junction Box / cab fuse panel ) you want to splice into.
The other question is the total amp draw of the LEDs.
Usually it is a low amp draw, but I do not want to assume that, not knowing what LED strips you are getting, and if it is 4 of them ( more ? ).
If the load is getting up there, you should use a relay.
At the very least a additional fuse, so if there is an issue with the LED strips you are blowing the fuse prior to the factory fuse or FET.
Depending on which route you want to go, is which wire at the side of the SJB ( Smart Junction Box / cab fuse panel ) you want to splice into.
The other question is the total amp draw of the LEDs.
Usually it is a low amp draw, but I do not want to assume that, not knowing what LED strips you are getting, and if it is 4 of them ( more ? ).
If the load is getting up there, you should use a relay.
At the very least a additional fuse, so if there is an issue with the LED strips you are blowing the fuse prior to the factory fuse or FET.
I haven't tried any other wires because I don't like splicing into the factory harness. I was only testing 2 of the 4 LED's. They originally plug into a cigarette outlet, but I cut that part off. I don't know if there is a way for this to work out or not. I don't know much on the wires, I don't have a diagram.
Again, I appreciate the help.
Technical Article Contributor
Joined: Jun 2002
Posts: 10,511
Likes: 10
From: Under the flightpath of old ORD 22R
Violet w/ white stripe wire is the output of the parking lamp relay, the other side of the normally open contacts is fuse #22.
There is a white w/ violet stripe wire on the back of the main headlamp switch, but that is the off circuit ( ground to the off position ).
Depending on the amp draw is if you want to run this on a relay or not. You would have to total up the individual draws to get an idea.
More diagrams under in my albums, there are 2 for the 2009 MY
There is a white w/ violet stripe wire on the back of the main headlamp switch, but that is the off circuit ( ground to the off position ).
Depending on the amp draw is if you want to run this on a relay or not. You would have to total up the individual draws to get an idea.
More diagrams under in my albums, there are 2 for the 2009 MY
