Power source under the dash
#1
Power source under the dash
Where's the best place to tap into a keyed power supply under the driver's side dash on an '04 Disco? I'm hooking up a CB and am hoping someone can give me a good shortcut answer so I don't have to meter it our or worry about overloading a circuit.
Thanks!
Thanks!
Last edited by Disco_Fever; 04-29-2009 at 02:57 PM. Reason: grammar
#2
Join Date: Aug 2008
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I think you can tap the brown ignition wire which is POWER... I did to power my CDL shifter...
http://picasaweb.google.com/jycsalas...93253352204306
see these pic and the one before it...
http://picasaweb.google.com/jycsalas...93253352204306
see these pic and the one before it...
#4
I put the meter on it and that wire has power even when the key is out of the ignition. I was hoping to find keyed power to access so I wouldn't have to worry about accidentally leaving it on and killing the battery.
Any suggestions? I'm going to start playing with the meter and testing wires...
Any suggestions? I'm going to start playing with the meter and testing wires...
#5
Okay... I metered out all the wires on that plug and it goes like this:
BROWN - Constant power
GREEN - Power only when key is all the way "ON"
YELLOW - Power only when key is all the way "ON"
RED/WHITE - No power
GREEN/WHITE - Power with key in "ACCESSORY" and "ON"
I'm tapping the GREEN/WHITE wire.
BROWN - Constant power
GREEN - Power only when key is all the way "ON"
YELLOW - Power only when key is all the way "ON"
RED/WHITE - No power
GREEN/WHITE - Power with key in "ACCESSORY" and "ON"
I'm tapping the GREEN/WHITE wire.
#7
I used a T-Tap quick slide connector on the GREEN/WHITE wire and plugged into it. Fired it up and took it for a spin, everything's as it should be! A nice clean install, major PITA but the end result was worth the effort.
Now all I need is to tune the antenna, I'll have to buy or borrow an SWR meter to finish up.
#8
#10
Yes, as long as it is off before you switch on the main power you should be good.
In my truck my radio was hooked live all the time, all over the road trucks and most day cabs have pos and neg power leads sticking out of the dash, using "C" ends on the power leads makes for a quick and easy hook up for your radio, but it is always live so you need to turn your radio on and off.
A buddy of mine kept blowing his radio up because he hard wired it to the ignition so that he could leave the radio power switch alone.
When he bought his third radio he asked the radio guy to install it and he said wait a minute...you cant do this.
That radio lasted him 5 years before I left the company.
In my truck my radio was hooked live all the time, all over the road trucks and most day cabs have pos and neg power leads sticking out of the dash, using "C" ends on the power leads makes for a quick and easy hook up for your radio, but it is always live so you need to turn your radio on and off.
A buddy of mine kept blowing his radio up because he hard wired it to the ignition so that he could leave the radio power switch alone.
When he bought his third radio he asked the radio guy to install it and he said wait a minute...you cant do this.
That radio lasted him 5 years before I left the company.