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Need help.. Aftermarket radio install - can't get power

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Old 05-20-10, 05:02 PM   #1
bronx99
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Default Need help.. Aftermarket radio install - can't get power

Hi i have a 2001 GS 430 with pioneer deck. i have most of the wires connected, but can't get power to the headunit.

The speaker connections i know i did right. I'm trying to get the Power, ACC, connections but it won't work.

I'm doing butt connections from the stock radio harness using the blue/yellow for power, and gray for ACC.

Can anybody help?

First pic is where i'm making the connections, second pic is a close up of the wire colors, and the 3rd pic is showing the original connectors before i cut one of them.
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Old 05-20-10, 05:30 PM   #2
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no power at all? what about ACC?
try powering the unit directly from the battery. as in + to + and - to -
see if the headunit is the culprit
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Old 05-20-10, 05:31 PM   #3
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why didn't you spend the extra money for a wiring harness?
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Old 05-20-10, 05:34 PM   #4
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i got the wiring harness for the speakers cables that come out of the factory amp.

ACC, Power, and Illumination (from what i understand) is just simple wire tapping from the harness that comes out of the factory radio
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Old 05-20-10, 05:48 PM   #5
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I've recently installed a head unit on my car. Those 2 connectors that you are showing are not it. The connector I used was a 6 pin one as shown on my pic here. It contains all the necessary wires to install an aftermarket deck. You're going to have to remove the wires from the connector and reposition them like I have here.

What kind of headunit u installing by the way?

Click the image to open in full size.

Last edited by rgarjr; 05-20-10 at 05:53 PM..
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Old 05-20-10, 05:51 PM   #6
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Quote:
Originally Posted by rgarjr View Post
I've recently installed a head unit on my car. Those 2 connectors that you are showing are not it. The connector I used was a 6 pin one as shown on my pic here. You're going to have to remove the wires from the connector and reposition them like I have here.

Click the image to open in full size.
yes i had that problem too. i was wiring the larger harness and it wouldnt power up. i wired the power from the smaller harness and it works perfect. power, acc, dimmer
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Old 05-20-10, 06:22 PM   #7
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i'm installing a kenwood dnx7100.

if u look at the 3rd pic i attached, you'll see the 2 plugs that came out of the stock radio.. it didn't have a 6 pin harness.

i'm starting to think the kenwood is dead.

Last edited by bronx99; 05-20-10 at 06:29 PM..
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Old 05-20-10, 07:38 PM   #8
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of course u dont have that harness. it comes with the wiring kit. did you buy a wiring harness kit? its only 10 bucks. i got an extra if u want it
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Old 05-20-10, 07:47 PM   #9
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Ok i have no idea what i did.. i just got fed up and decided to put everything together and drive it to a friends house. I turned on my car.. and it started working. No idea what happened..

Blue/yellow is power
gray is acc
and light green is dimm..

i had the correct connections all along.. must have been a loose wiring.

Last edited by bronx99; 05-20-10 at 10:02 PM..
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Old 05-21-10, 03:36 AM   #10
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lucky you. I turned on my car changed the station and now my faceplate shows nothing. eveyrthing works fine, just nothing on my aftermarket face plate. anyone know what might be the problem?
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Old 07-06-14, 12:03 PM   #11
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Quote:
Originally Posted by rgarjr View Post
I've recently installed a head unit on my car. Those 2 connectors that you are showing are not it. The connector I used was a 6 pin one as shown on my pic here. It contains all the necessary wires to install an aftermarket deck. You're going to have to remove the wires from the connector and reposition them like I have here.

What kind of headunit u installing by the way?

Click the image to open in full size.


my metra Metra 70-1761 says:

Note: In 1998-2000 Lexus GS vehicles, these harnesses connect at the
amplifier location behind the passenger's side kickpanel. The 12 Volts
Constant power, chassis ground
and speaker wires must be lengthened in
order to reach the kickpanel area
. The power antenna and 12 Volts Switched
power leads must be spliced at the radio location.


Has anyone ran there harness this way and it worked? i have only the 12v switched and dimmer going into the 6 pin, constant power and ground going to amp harness in 10 pin. Ive already made my extended harness and dont want to take it part and re do after finding out it doesnt work
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Old 07-08-14, 04:26 PM   #12
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i just decided to just wire it the same way as picture above. power acc ill and ground going behind the stereo in 6 pin harness. and it works. but the radio doesn't turn on with the car i have to press power. when i start the car. i had this radio with my other car and it should be coming on with the car. Any i deas why??
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Old 07-08-14, 07:01 PM   #13
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Quote:
Originally Posted by freshmoney View Post
i just decided to just wire it the same way as picture above. power acc ill and ground going behind the stereo in 6 pin harness. and it works. but the radio doesn't turn on with the car i have to press power. when i start the car. i had this radio with my other car and it should be coming on with the car. Any i deas why??
Now its working. i havn't touched a thing.
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Old 07-08-14, 07:01 PM
 
 
 
 
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2001, 300, aftermarket, connector, gs, gx470, install, instructions, is300, lexus, lx450, power, radio, removing, sc400, why, wires

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