Power IGN question

**Emo** · 02-20-2006, 10:10 AM

Nice thread.. learned some things because I need to wire my Opus very soon and I'm freaking out about the whole IGN wire thing.. I have no idea what and where to wire it... If I ready correctly, can I just wire it to the sig lighter and fuse it?

-Emo

**0okami** · 02-20-2006, 10:37 AM

Originally Posted by Emo

Nice thread.. learned some things because I need to wire my Opus very soon and I'm freaking out about the whole IGN wire thing.. I have no idea what and where to wire it... If I ready correctly, can I just wire it to the sig lighter and fuse it?

-Emo

thats what i understood too. correct us if we are wrong.

**xbi0s** · 02-20-2006, 08:13 PM

As long as the cig lighter shuts off when the ign is off -- Some cars have a constant cig lighter

**stapan** · 02-20-2006, 11:35 PM

Originally Posted by 0okami

so in short, if its a positive/hot/+ wire, always fuse it near the source. correct?

yeah, that's right. spuzzdogg hit the nail on the head as far as fusing it as close to the battery/source as possible, or at least closer than the closest sheet metal.

think of it this way... the wire is like a pipe that always carries water from a source (the battery, or your "cig lighter" wire). the fuse is like a valve on the pipe that when closed, stops water from going through at that point. so lets say the valve is on the pipe a mile after it leaves the source. if the pipe gets a hole in it anywhere in that first mile before the valve, water goes everywhere and you can't shut it off! (sparks, wire possibly catches on fire) closing the valve wouldn't do anything because its after the leak. however, if the valve is right near the source, you can shut it off thereby stopping the leak since the leak is further down the pipe.. the fuse just happens to be a valve that automatically closes if it detects a leak further down.. hope that amkes sense

**Emo** · 02-20-2006, 11:39 PM

Originally Posted by stapan

yeah, that's right. spuzzdogg hit the nail on the head as far as fusing it as close to the battery/source as possible, or at least closer than the closest sheet metal.

think of it this way... the wire is like a pipe that always carries water from a source (the battery, or your "cig lighter" wire). the fuse is like a valve on the pipe that when closed, stops water from going through at that point. so lets say the valve is on the pipe a mile after it leaves the source. if the pipe gets a hole in it anywhere in that first mile before the valve, water goes everywhere and you can't shut it off! (sparks, wire possibly catches on fire) closing the valve wouldn't do anything because its after the leak. however, if the valve is right near the source, you can shut it off thereby stopping the leak since the leak is further down the pipe.. the fuse just happens to be a valve that automatically closes if it detects a leak further down.. hope that amkes sense

yeah that was a good example.. thanks

-Emo

**piabu** · 02-20-2006, 11:43 PM

Originally Posted by stapan

yeah, that's right. spuzzdogg hit the nail on the head as far as fusing it as close to the battery/source as possible, or at least closer than the closest sheet metal.

think of it this way... the wire is like a pipe that always carries water from a source (the battery, or your "cig lighter" wire). the fuse is like a valve on the pipe that when closed, stops water from going through at that point. so lets say the valve is on the pipe a mile after it leaves the source. if the pipe gets a hole in it anywhere in that first mile before the valve, water goes everywhere and you can't shut it off! (sparks, wire possibly catches on fire) closing the valve wouldn't do anything because its after the leak. however, if the valve is right near the source, you can shut it off thereby stopping the leak since the leak is further down the pipe.. the fuse just happens to be a valve that automatically closes if it detects a leak further down.. hope that amkes sense

Excellent analogy. Says it so much clearer.

And the value (fuse) also prevents the water (charge) from draining away until your water source is empty (battery flat and dead).