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Discussion Starter #1
I searched this forum for posts and didn't see any, hoping I didn't miss one for the same topic.

I'd like to add amber LED turn signal indicators to my side view mirrors on my 2010 Cobalt LT sedan.

I've been looking at these LEDs: Super Bright Pre-wired LEDs and saw a page a while back that explained simply tapping into the wires at each headlight assembly for the parking light/turn signal, and running those wires through the engine bay back through the door and into the mirror.

I'm less concerned with the wiring path than I am with the way they will work. I couldn't find any posts dealing specifically with adding LEDs on top of what exists, most detailed replacing existing bulbs with LEDs.

What I'm wondering is, is it as simple as just tapping to the wire(s) for the existing turn signal on each side, and is any extra stuff needed electrically? Also, is there different wiring for the parking lamp and the turn signal? I’ve never inspected the wiring in the headlight assembly too closely, but if there is only one wire, that would mean that the flow of power is changed when the turn signal is activated, and any tapped LEDs would just be on solid when the parking lamps are in, right?

Hope this makes sense… the biggest concern is what all needs to be added for this to work. If it’s just a matter of wiring, no extra electrical stuff needed (resistors/capacitors/???), I might go for it once it gets a little warmer outside.

Thanks!!
 

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Did you want to add an LED strip or just an LED or several individual LEDs? If you want to avoid resistors and any other component get 12 volt LEDs. Park and blinker are seperate wires. No need to go all the way to the headlights. Those 2 signals are available from under the fuse block. "A1" and "D1"
 

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Discussion Starter #3
Thanks Coby, I figured I'd see a reply from you here :p

The LEDs I linked to are 12 volt. How would I tap in at the fuse block? Would it be a fuse tap similar to what I used (with help from you and your guide) to install a USB charger at my passenger foot well fuse block?

Thanks again!!
 

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You could use a fuse tap, or you can tap right onto the connector pin under the fuse block either with a quick connect or my favorite way is to solder directly to the pin in the connector.











 

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You can use the ground from this connector but I would just ground to a suitable spot in the door. This would save you running two more wires.
 

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I believe there are instructions some where, I'll look for it.

Here we go, though it looks like he ran a wire from his lights through the fender.
cobaltuniverse.net/topic/8712497/1/
 

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I believe there are instructions some where, I'll look for it.

Here we go, though it looks like he ran a wire from his lights through the fender.
cobaltuniverse.net/topic/8712497/1/
I forgot I posted that there lol. However many years ago and things are still working great!
 
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