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1998 Sienna is having loud electrical discharges thru the audio speakers every minute or two with the key off and it runs my battery down in about a week.

Sounds vary from a quick pop to sounding like the front seat is being adjusted the full travel length of the track. At same time as this started, the electric door locks and interior lights quit working when the key is off. Also it wakes me up during the night as I hear it thru the house window. i checked the both fuse boxes and every ground connection I can find.

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Check wiring
Sorry I thought you ment door card speakers because you mentioned door locks

Posted on Dec 16, 2016

Testimonial: "3 things went wrong at the same time 1) Cannot use electric door locks unless ignition switch is ON 2) Interior lights all quit lighting 3) Loud popping noises thru the audio system at 30 to 150 second intervals when the ignition is OFF but not when it is ON Today I unplugged the connectors off the ignition switch and off the under dash fuse box (all but the one with really really fat wires) and the popping noises still happen. So far I've only been able to stop them by disconnecting the battery cables. I checked all the fuses under the hood as well as well as all of the ground connections I have been able to find."


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2007 Toyota Sienna Car Audio Wiring Color Codes
Car Radio Battery Constant 12v+ Wire: Blue/Yellow
Car Radio Accessory Switched 12v+ Wire: Gray
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: Green
Car Stereo Dimmer Wire: N/A
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Car Stereo Amplifier Location: N/A
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Right Front Speaker Positive Wire (+): Green
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Disconnect and isolate the negative battery cable from the battery. 
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Remove the key cylinder (ignition lock). 
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Be sure the ignition switch is in the RUN position and the actuator shaft in the ignition lock housing is in the RUN position. 
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Carefully install the ignition switch, making sure the ignition switch snaps over the retaining tabs. 
Install and tighten the ignition switch mounting screw. 
Install the key cylinder (ignition lock). Complete the installation by reversing the removal procedures. 
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