Does anyone know the best place to get a 12V source under the dash. I am thinking that the ignition switch would be a good location. Happen to know the color of the wire that I could tap into. I have a couple of Autometer guages that I need to hook up to a 12 V source and just looking for help on finding a good location since I don't have a wire schematic. Thanks for your help.

I know this should probably be in the electrical section but I believe more people cruise this general area.

 

Easies is the Cigarette lighter circuit (near the lighter socket itself). It is switched with ignition. And you can tap off of it easily.

 

or jsut come off the front of the fuse panel and put your own inline fuse in thats what i did for my under dash neons

 

Thanks guys I didn't even think of the Cigarette Lighter.... I did take a look at the fuse block under the dash but damn there were a bundle of wires going into it. Its not like the old muscle car fuse blocks that I'm used too.....lol I'll also take a look at the fuse block again as well.

 

I'm leary of taking too much juice from the cig lighter....don't want to overload the lightweight wires.
I'd come straight off the fuse box.

 

They make fuse taps that plug into a circuit. Just find one that is hot with the key on.

 

Its called a mini-add a circuit, they sell them at autozone for like 5 bucks....they're fantastical.

 

Sure get technical on my a$$

 

A proper way (not jeopardizing warranty, in part) is to just rout positive source from the battery under dash and have it activated through the relay for "ignition on" supply.

 

Thanks guys I'll take a look at the mini-circuit add on. I'm planning on getting the rest of my guages hooked up this weekend. Got all the lights hooked up. just need to hook up to the 12 V source now.

 

So on the add a circuit, can you plug that ionto a blank slot, or what?

 

Don't need a blank spot. You actually use a fuse circuit that is already there. Hence the name Add A Circuit.

 

I was wondering the same thing. Ok so I did a search and found this....



Thats what was on the web page I found it on.

Question....Is it bad to Piggy back off another fuse?? I was told its a bad Idea but I haven't a clue

 

It will be fine as long as you don't try to overload that circuit. Those things come in real handy for powering stuff up on the Skyons.

 

Hey all,

New to the forums... been lurking for a while. Thanks for the good content...

Anyway....


I'm doing about the same thing right now, but trying to power a line amplifier for an XM PnP radio, but I'm having a problem with grounding properly. This is on an 04 xA.
I've got an add a circuit installed with a 15v fuse for the 12v needed for the amp, but it doesn't seem to be working..

I tried grounding to the steel bar that's up above the steering colum (pretty sure I tested postive for ground there) but it's just not happening. Where are you guys grounding to under the dash for all your add-ons?

Thanks!

Zach

 

Not 100% sure on the xA but on the xB there is a gounding spot behind the drivers side kick panel. I think it's a 10mm nut with some other wires going to it for ground.

 

there should be some metal u can screw into under the dash or behind the kickpanels.

 

Thanks guys. I was able to get it to work....

.....ahhhhhhh, satelite rocks!

 

I have a two-way radio that draws 12A. Which method (tapping into a positive wire or using a fuse tap) would you recommend?

 

12 Amps?! Is that legal?!
:D