LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

92 LS400 antenna question

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Old 12-13-12, 11:03 AM
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SSAstro
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Default 92 LS400 antenna question

wanted to see if anyone knew how to shut off the antenna?
Old 12-13-12, 12:21 PM
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Shiryo
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Unplug it or keep the radio off? Lol.

Not to thread jack but, I replaced my antenna since the old one was stuck up now it's stuck down...
Old 12-15-12, 02:02 PM
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Dubbayoo
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I think/thought you could unplug it in the trunk right underneath. I had to do mine when it broke in a car wash.
Old 12-15-12, 02:25 PM
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DertyDOH
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you can unplug the connector plug going to the motor in the trunk
Old 12-15-12, 04:38 PM
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SpencerT
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^+1
you can unplug the motors.
Leave the thick black antenna wire plugged in for better reception.

With this setup your reception will be about 75% of stock.
More than enough to get the job done. and you dont have to deal with that pesky power antenna
Old 12-16-12, 01:02 AM
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Shiryo
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Where is the plug for the antenna wire? I just checked the box in my trunk and there's 2 cannon plugs, but noticed the antenna wire does not go into those and right into the car.

Only reason why I ask is that, I replaced my antenna but now it is stuck in the down position. Never bothered me, since I use satellite radio via Pandora on my phone hooked up to bluetooth.

However... Sometimes I'd like to listen to the FM radio, but with the antenna down, I get zero reception. On the flipside, Spencer is saying I should still get decent reception?

Last bu not least, I heard people were using another cable for better reception, something about the cable on the right side of the trunk? Here's the wire on the right side (first pic) then some other wire (second) I have no idea what it goes to, thinking it might be aftermarket?

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Old 12-16-12, 03:46 AM
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stock545i
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I ended up replacing the mast on my antenna. Easy fix.
Old 12-16-12, 04:22 AM
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SpencerT
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With my antenna down but still plugged in, yes, I get good reception. I still get every station and only 1 gets a little fuzzy at times.

The first picture is the car phone antenna wire. That is the wire people connect to the radio antenna wire for better reception.

Second pic, I dont have a clue. Aftermarket probably.
Old 02-24-13, 01:45 AM
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simrx3
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can anyone tell me if they are positive trigger or negative trigger to get the aerial mast up..

previous owner had put a sony deck in. but the aerial doesnt work.. suspecting its not connected..

so just want to know how it works before getting all auto electrician on its ***...
Old 02-24-13, 08:18 PM
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simrx3
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ok cool..

but what triggers it to put the mast up in the first place?..

a positive signal from antenna supply
or a neutral/ earth signal
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