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Old 12-29-2008, 01:00 PM
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Join Date: Mar 2005
Location: Yountville, CA
Posts: 1,175
'84 380sl Radio wires

Does anyone know proper wire colors for wiring in new stereo. Previous attempt drained battery and made wipers in operable. Stereo was wired for power when ignition was off which I believe was a mistake. Please help in you have good info, thanks!
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Old 12-29-2008, 01:21 PM
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Join Date: Dec 2001
Location: Edge of the Abyss
Posts: 335
Radio color code:

1. Brown connect to Earth
2. Red/Green connect to fuse No.14
3. Blue/Red connect to switch/Automatic antenna
Deltacom ~ Absit Iniuria Verbis ~
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Old 12-31-2008, 02:49 PM
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Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
Most aftermarket stereos have a yellow wire which is supposed to be hot at all times so you don't lose the pre-sets and other settings. Then there is a red wire that should have power when the ignition is in ACC or Run. Usually the black wire is ground, blue for the antenna, and yellow for the light dimming.
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
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Old 12-31-2008, 06:08 PM
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Join Date: Aug 2008
Posts: 22
Just replaced the hu in my 83' 380SL last summer. I bought the adapter from crutchfield and it worked perfectly. I just connected the hu to the adapter and speakers with insulated spade connectors. Worked perfect!

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