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Old 10-18-2005, 06:21 PM   #1
Scooby Newbie
Member#: 79839
Join Date: Jan 2005
Chapter/Region: South East
Location: Boynton Beach, FL
2004 WRX Premium
Sedan; Aspen White

Default Ignition Lead?

I'm hooking up a Bluetooth car kit in my WRX, and I need to find out where to hook up the ignition lead. I got the power and ground spliced off the radio, but I need to hook into the ignition so the unit powers on and off with the ignition. What's the easiest way to do this? The unit is a Sony Ericsson HCB-300
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Old 10-19-2005, 01:31 PM   #2
Scooby Newbie
Member#: 92130
Join Date: Jul 2005
Chapter/Region: Tri-State
Location: Long Island, NY
2002 2.5rs


i would assume the location of the ignition wires is pretty close to the same as in my 02... however i suspect you may be looking for the accessory wire rather than the ignition wire... i got both of these wires for my remote start right at the key cylinder... remove the lower panel of the steering column right behind the steering wheel... then you'll see a small cylindrical thing in line with where you put the key in... should have 4 or 5 thick wires coming off it... using a test light find the one that goes on and off w/ the key... to simplify you can also remove the cylinder so it's easier to work with and you can reach farther back on the wires; it pulls right out
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Old 10-19-2005, 02:33 PM   #3
Scooby Guru
Member#: 10309
Join Date: Sep 2001
Chapter/Region: NWIC
Location: Seattle, WA
'02 OBS 2-tone!
'95 Montego Miata


You're looking for a "switched" power or ACC wire. Just get it from the radio harness like you did the constant +12V and ground wires. Check out the forum sticky here or in the Car Audio, Video & Security forum for a link to a diagram showing the pinouts.
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Old 10-19-2005, 02:41 PM   #4
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
15 WRX/05 GTO


Also, you can use the cigarette lighter which is accessory power, or there is a yellow/red wire at the top/front of the under-dash fuse box which is another accessory source.
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