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1999 Toyota Sienna amp question

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=25273
Printed Date: May 13, 2025 at 4:17 AM


Topic: 1999 Toyota Sienna amp question

Posted By: Chefalo
Subject: 1999 Toyota Sienna amp question
Date Posted: January 25, 2004 at 10:48 PM

Question to the experts in the group:

I have a 1999 Sienna CE that was purchased with 4 speaker, lowest end audio system... but it has steering wheel remote. My wife likes that remote but wants a CD player. I thought I'd be smart and get the OEM upgrade, which I found used. After trying to install it, I learned it needed an outboard amp (my van is not eqipped with one). So I found an OEM amp, too. Now I have the two components AND a bunch of questions on how to get them to work together.

I see the usual harness connections exiting the amp, so I can connect the speakers to the amp. And I have located the mounting bracket for the amp. But how do I connect the head unit to the amp? There is also a second connector on the backside of the amp, which I suspect has something to do with it. There are no unused wires in the harness that I can find. And there is a large connector on the back of the head unit with no mate in sight. Can I use the components that I have to get a CD player in the car (and make my wife happy), or should I try another route?

And if I can't use this head unit on the Sienna, I have a 1993 Camry with the premium sound system. It already has an outboard amp in it; can I use the head unit there (looking for a plug and play solution here)?

Any suggestions would be appreciated. Thanks.

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Michael Chefalo
Rochester, NY



Replies:

Posted By: DYohn
Date Posted: January 26, 2004 at 8:27 AM

OEM systems require specialized connectors and factory installed wiring that may or may not already be in your vehicle.  Find the factory mounting locations for the components and see if there is an unused connector in the general area that mates with the equipment.  If not, you will have to build your own interconnects.  Get the factory wiring diagrams from your dealer to see what the pin-out is supposed to be if you have to build your own.  This is difficult to make work correctly.

What you are attempting is an expensive, time-consuming proposition that may end up in failure if you cannot determine or obtain the proper connectors.  Installing an after-market HU and CD changer is a far wiser and easier route (and maybe even cheaper, as OEM stereo equipment is often WAY overpriced.)





Posted By: defective
Date Posted: January 26, 2004 at 8:35 AM
there is also a factory steering wheel interface module. It only works with certain brands of head unit ...... but theres a way

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Posted By: customsuburb
Date Posted: January 26, 2004 at 6:18 PM

The PAC-SWI-X allows an aftermarket cd player (which would be way better then your OEM one ,be alot less expensive ,and sound better). Just buy this along with a cheap easy to use aftermarket receiver that come with a wireless remote. A HU like this Clarion one would be a good choice because its easy to use: https://www.crutchfield.com/cgi-bin/S-lohrX8fyGrz/ProdView.asp?s=0&c=3&g=300&I=020DB245&o=m&a=1&cc=01&avf=Y 

You can find all of these things at crutchfield.com. Just shop from this link which already has your vehicle information selected: https://www.crutchfield.com/cgi-bin/S-lohrX8fyGrz/autoinfo/autoinfo.asp?s=0&cc=01&vehicleid=11706 They give you excellent instructions and free tech support so I think this is one of the best places to shop for car audio online.





Posted By: customsuburb
Date Posted: January 26, 2004 at 6:21 PM
Sorry. I wasnt paying attention ,the PAC-SWI-X dosnt have your vehicle listed as being compatible with it.posted_image





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