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Which wire is 12V Ignition-On in the fuse box?

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17 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHWhich wire is 12V Ignition-On in the fuse box?

Leading reported evidence

Use littelfuse add-a-circuit fuseholder

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Used a Littelfuse Add-A-Circuit Fuseholder.

Which wire is 12V Ignition-On in the fuse box?
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Leading evidence: 'Use littelfuse add-a-circuit fuseholder' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use littelfuse add-a-circuit fuseholder' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use paper fuse diagram

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Suggestion

Added my V1 by using the paper fuse diagram.

Which wire is 12V Ignition-On in the fuse box?
Frequently discussed actions (2)

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Use littelfuse add-a-circuit fuseholder

No successful repair reported for this finding.

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Reported fixes
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Unsuccessful attempts
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Read evidence and context
Discussions that performed work without a confirmed outcome
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

Used a Littelfuse Add-A-Circuit Fuseholder.

Which wire is 12V Ignition-On in the fuse box?

Use paper fuse diagram

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion

Added my V1 by using the paper fuse diagram.

Which wire is 12V Ignition-On in the fuse box?
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17 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

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POST 1Original post

I'm going to tap my Valentine1 this week. I saw the articles and one guy wrapped the wire around a fuse. I prefer to just clamp and tap into the power. Can someone tell me where I can find a wire that is 12V Ignition-On?

POST 2Original post

Here is what I found in my fuse box: Sensitive content, not recommended for those under 18 Show Content SW 12 are switched circuits. With different options, your fusebox will be populated differently....

POST 3Original post

If you have autodimming mirrors there is a switched 12v in the wiring harness for the mirror.

POST 4Original post

I don't have auto-dimming mirrors. I still need to find a wire

POST 5Original post

There should be a diagram showing all the fuse locations (even if they are empty) on a sheet in the fuse box. Pick an accessory that is not on your car, but is switched with the ignition (like a rear wiper, for instance). That location is the place to go. There are adapters for sale at most part houses that plug into the fuse and provide a pigtail and a fuse. Marty

POST 6Original post

Added my V1 by using the paper fuse diagram. Used a Littelfuse Add-A-Circuit Fuseholder. Do a web search for this and you will find the picture. There are some very helpful write-ups to guide you, with excellent hints.

POST 7Original post

So I plug that thing into a 12V ignition on fuse box location, the V1 red plug goes into the top where the 5's are. But where does that blue end go to?

POST 8Original post

That is the power lead to your accessory. That is a crimp fitting on the end. Marty

POST 9Original post

Does the homelink have a 12 switched circuit? I think it should, but I was playing around with my multi-meter and I couldn't get a reliable read on it.

POST 10Original post

This is a 2011 Cayman I found a 12v acc wire in the drivers kick (18awg Org/blk) in 1st main harness sorry for the blurry pic

POST 11Original post

Try tapping off the fuse in position B-9 - that is a switched circuit and will only turn on when the ignition is on.

POST 12Original post

The 987 uses a Can Bus system, most the fuses are powering relays which are then in turn activating the accessory. That makes finding a tap that is ignition-based live is difficult to do. However the C-6 Fuse on the panel is one of the few you can piggy back onto and will give you want you want, switched power-on. Its in third row from the top of four rows total, ROW C, position 6 from the left. Duane

POST 13Original post

Speaking of this - any idea why porsche thinks it's a good idea to have the outlets (cigarette lighters) be permanently on ? I suppose that mean if I forget to unplug something I'll find the battery dead when I come back ? (or is there something like a 1h timeout maybe ?)

POST 14Original post

Most Can Bus systems like what is on the 987 have a timer delay on them. Typically they will keep the accessory 'live' for anywhere from 30 to 60 seconds after the key is pulled.

POST 15Original post

I think it's more than 60s - 60s would be good or even a few minutes - at least the loaner cayenne I got seems to stay on forever because my escort turns off and doesn't turn back on until I unplug/replug (or I suppose I could press the power button but it's not reachable easily)

POST 16Original post

This photo was immensely helpful in my radar detector hard-wiring today. This is a much better solution than having to add a fuse tap. Thank you! Someone please add this to the radar detector install article!

POST 17Original post

With a very small load ( led ) my 981 CS footwell power supply stays on for several minutes then goes off (with doors closed and locked)

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