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Discussion Starter · #1 ·
Hi, I need help in identifying the correct wire in the back of a ‘01 EX radio with CD that is the main supply feed to the radio. I want to install a relay for my Nokia CARK-91 hands’ free car kit so it will turn the radio off when I make or receive a call automatically and turn it back on when I’m finished. I do not want to tap into the wire that make me input the secret code if there’s a break in that wire. Does the Helms manual have this info or the electrical trouble shooting guide? Can this be done on the EX radio?



Premium Member
2,140 Posts
Based on this post from RobertC in a previous thread, the white/red lead is the ignition lead, which will control whether the radio will power on/off. White/blue is memory.
You do know however, that there is a mute lead for the navi input, right? You can tap that, and it will mute the front speakers for you. I think you'll need to use a relay to reverse the polarity of that input, but seems this would be cleaner than the radio powering itself on and off every time you use your cell phone..... Just a suggestion. I don't have my electrical manual in front of me, so don't know the color of that wire.

<font face="Verdana, Arial" size="2">
White/Blue +12V from Battery
White/Red Switch-Ignition +12 V
Red/Black + DIM Control
Red - DIM Control
Black Ground
Blue/Green Driver Door Speaker +
Gray/Black Driver Door Speaker -
Red/Green Passenger Door Speaker +
Brown/Black Passenger Door Speaker -
Blue/Yellow Left Rear Speaker +
Gray/White Left Rear Speaker -
DEP '01 EX no-navi
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