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Old 06-13-2008, 10:48 PM   #1
573
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Member#: 144821
Join Date: Mar 2007
Chapter/Region: MWSOC
Location: Troy, Michigan
Vehicle:
1994 LS1 Miata
2015 white WRX

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I'm not an electrical engineer, and I have little experience working on cars. This method is working great for me, and I consider it to be very safe. If anybody spots an error, please point it out so I can make corrections.
The same thing can be found here but with bigger pictures. http://www.cgbagne.com/wrx/?p=35

With that said, I'll begin.


This was done on a 2007 wrx wagon. As far as I know, this method will work on all 2002+ imprezas.

Tools
1. Soldering iron
2. Wire cutters
3. Wire strippers
4. Phillips head screwdriver
5. Needle nose pliers(not required)

Parts(all of which can be found at radio shack)
1. 1 wire tap(for 18g wire)
2. 18g wire(red and black)
3. Inline fuse holder
4. 1amp 250v fuse
5. Electrical tape
6. Double sided tape
7. Solder
8. Zip ties(not required)
9. Ring terminal


The first step is to remove that panel that is pictured below. It is held in place by clips, 2 screws, and a clip that looks like a screw. Remove the screws and the screwy clip thingie, and pull. It shouldn't take much force to remove the clips.



Next, you will need to remove the shifter trim to access the wiring for the lighter. Pull upward, as shown in the picture. Little force is needed.



Use a wire tap to connect the red wire from the lighter to the inline fuse. I used a 1amp 250v fuse because that's what my gps unit came with. This is a good location for the fuse because it is easy to access for replacement, and it is close to the tap.



Run a red wire through the center console. This will take the power from the tap to the gps.



Solder and tape the wire you've just run to the fuse.



Run the wire for your gps through the path marked in red. If you undo the bolt that is circled in red, and pull the plastic piece outward, the wire is much easier to run. The wire is not visible in this location.



Run the gps cable between the metal, and plastic piece, as shown in the picture. Begin soldering the the power cables together.



Get a piece of black wire, and solder it to the ground wire of your gps. My gps has an external speaker, so I had to do some additional soldering, and mount the speaker. Once everything is soldered, tape it all up, and use a zip tie to hold all the wires together. The zip tie is to act as a stress relief, so the connections don't come undone if a wire is pulled. Tuck the wire bundle back behind the fuse panel once you finish working on it.



The next step is to ground your gps. Wrap the black wire that you have previously soldered to your gps's ground around the bolt for the hood release latch. Just about any metal on the car should work as a grounding point, but this one seemed very convenient, and I have proven it to work.
edit: Wrapping the wire around the bolt is not a good idea. It works, but a ring terminal is preferred. Refer to post 3 for more details.



Use double sided tape, or any method that you may prefer to hold your gps in place.


Congratulations!!! Give yourself a pat on the back, and enjoy your cleanly installed gps.


-Curt
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Last edited by 573; 08-27-2008 at 10:40 AM. Reason: added link
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Old 06-13-2008, 11:22 PM   #2
jdubya301
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Join Date: Jan 2007
Chapter/Region: MAIC
Location: Scranton PA
Vehicle:
2002 stg2 wagon
03 suzuki sv650s

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cool, i would def do that if i wasnt using the fam's gps all the time

did u use a quick connector of some sort so that it can be taken down when parked in a sketchy spot?
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Old 06-13-2008, 11:25 PM   #3
Mulder
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Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
Vehicle:
02 WRX
15 WRX/05 GTO

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The clip-on taps aren't the best way to make a connection, although in this case you can get away with it because your GPS does not draw very much current. Still, there are better ways to do it- butt splices if you want to use the lighter wire, or an "add-a-fuse" to tap into the fuse box with no wire cutting.
Also for your ground connection, wrapping a wire around a bolt is not good practice. Get a ring terminal or spade lug that fits on the bolt threads, crimp it onto the negative wire and attach it to the bolt.
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Old 06-13-2008, 11:26 PM   #4
573
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Member#: 144821
Join Date: Mar 2007
Chapter/Region: MWSOC
Location: Troy, Michigan
Vehicle:
1994 LS1 Miata
2015 white WRX

Default

Quote:
Originally Posted by jdubya301 View Post
cool, i would def do that if i wasnt using the fam's gps all the time

did u use a quick connector of some sort so that it can be taken down when parked in a sketchy spot?
Yep. It's extremely easy to remove. The base has a little lever that unlocks it, so it just slides right out.
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Old 06-13-2008, 11:31 PM   #5
573
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Member#: 144821
Join Date: Mar 2007
Chapter/Region: MWSOC
Location: Troy, Michigan
Vehicle:
1994 LS1 Miata
2015 white WRX

Default

Quote:
Originally Posted by Mulder View Post
The clip-on taps aren't the best way to make a connection, although in this case you can get away with it because your GPS does not draw very much current. Still, there are better ways to do it- butt splices if you want to use the lighter wire, or an "add-a-fuse" to tap into the fuse box with no wire cutting.
Also for your ground connection, wrapping a wire around a bolt is not good practice. Get a ring terminal or spade lug that fits on the bolt threads, crimp it onto the negative wire and attach it to the bolt.
Thanks for your input. I'll leave the clip-on tap in place, as it seems to be adequate for this application. I'll pick up one of those ring terminals next time I pass by radio shack.
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