88 views and counting... I'm in the process of trying to have the Subaru dealer fax me some wiring diagrams...

 

Didn't the boost gauge come with the install sheet? It should tell you where to tap in. For my Defi gauge, I tapped into the IGN wire for the hazard button, but that was an '05, so I'm sure things have changed since then.

 

it's not rocket science people.. just tap off the fuse box.. done.. 1.5 minutes max.. i have 2 gauges running off the box...

 

agreed - but I want to make sure I'm using the correct wires. would you be able to snap a shot of what you have tapped, or at least describe the color wire(s) and which fuse you're tapping off of specifically? thanks for the help.

 

Unfortunately, the install sheet - which was entirely in Japanese of course - did not have any diagrams where to tap to get the electrical. And I was at least going to see if the needle would move to see what bar I was pushing, but since it's entirely electrical, I couldn't even do that... So at this point I have everything hooked up, except the juice.

 

when i get home i can tell you the wires on the fuse box.. i'm using a defi boost gauge.. there is an ACC fuse and if you look at the fuse panel cover, you can figure out which ones to tap for constant power.. i don't remember what wire i used to trigger the dimming when the lights are turned on.. i'll know more this afternoon

 

any updates? thanks!

 

okay great, i look forward to getting the info. thanks

 

http://www.iwsti.com/forums/1592086-post35.html

that post should help you greatly, it helped me.

instead of going into the fuse box you could tap into your hazard switch harness as well.

 

http://www.iwsti.com/forums/1592086-post35.html

that post should help you greatly, it helped me.

instead of going into the fuse box you could tap into your hazard switch harness as well.

thanks! this should def be helpful

 

Although the above link was helpful - I was wondering if anyone has anything specific to the 2008 for the wiring of the Boost gauge. I'm still looking for some official pics of what wires/colors to ground and tap into. Thanks!

 

Dude there is no perfect or 100% the right way. Find a source, tap into it. Don't choose an air bag circuit. Use a test light, find the source, tap into it. The fuse box is good, you can even buy special taps from Autozone. The cig lighter is good. The hazard button, the

I have added a Garmin nav (fuse panal), escort radar (over head lights), 160 gig hard drive, (fuse box) an additional sub under the pass seat.(cig lighter and fuse box.)