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Old 03-15-2005, 01:02 AM   #1 (permalink)
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How-To on bypassing factory Amplifier

I posted this on Solaraguy, so I figured I'll copy and paste it here too. Corollacrazy42 hope you don't mind, but I used your pic

Now keep in mind I had a 99 XLE camry so I'm basing this info on that car and the gen1 and gen 1.5 Solara. Your car might be different, in that the amp might be mounted somewhere else in the vehicle, and you might not have the pre-wired harness already there.

If you have a 97-01 camry or a gen1/gen1.5 solara with the JBL system, then your car has an external amp that is mounted behind the glovebox. If you want to install an aftermarket CD player you are going to want to bypass that amp and use the new CD players onboard amp.

This is very easy to do and doesn't require any special tools.

First thing I always do is disconnect the battery.

Removing the old headunit. To remove the factory headunit you will need to take out the ashtray as well as the ciggarette lighter. Once you have the ashtray out stick your hand in the spot where the ashtray was and pull hard on that. That will release the bottom part of the trim. Once that is detached you will resume detaching the trim by pulling it from the bottom and working your way up. It's pretty easy and you shouldn't have a problem. If you have an automatic it might be easier to put the shifter in low gear(parking brake on too)

Once you have the trim removed from the dash disconnect the power wires for the cig. lighter and set trim aside.

There will be four bolts holding in the brackets that the headunit is mounted to. They are 10mm if I recall correctly. You can also use a large phillips screwdriver but a 10mm socket and rachet is easier.

Once you have those four bolts taken out the headunit will come out. Remove the brackets on the side of the headunit using a phillips screwdriver. You will reuse these brackets for the new CD player and Din pocket.

On the back of the factory headunit there wil be two harnesses going into it as well as the antenna wire. Disconnect all of these.

Fortunately Toyota has prewired another harness that makes it very easy to bypass the factory amp.



The two connector's in the top right corner of the picture will be used instead of the wiring connected to the original reciever.

Use a scosche or metra wiring harness like this one.



http://www.cardomain.com/item/SCOTA02B?vq_id=none
and
http://www.cardomain.com/shop/item.pl?sku=SOUIECHUK


Match up the correct wires from the Scosche harness to the new CD players wires. Reconnect the antenna wire. And test the CD player to make sure it turns on when the key is put on ACC.

Attach the original headunit brackets to the new CD player and bolt it back into place. You can mount it on the top part of the Double Din opening or the bottom.

Toyota sells a nice pocket with a door to accomodate the open space.
IIRC it cost's about 20-30 bucks at the dealer.



Good luck, let me know if you got ?'s
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Last edited by cam2Xrunner; 03-15-2005 at 01:06 AM.
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Old 03-15-2005, 02:38 PM   #2 (permalink)
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Nice post! Simple, yet effective.
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Old 03-15-2005, 06:43 PM   #3 (permalink)
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yea thats fine.. i dont mind.. it for all to view
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Old 03-18-2005, 07:03 AM   #4 (permalink)
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Nice write up
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Old 03-18-2005, 10:03 AM   #5 (permalink)
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yess i also compliment you on taking the time to make it.. apparently im lazy.. sry...
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Old 05-30-2005, 12:14 AM   #6 (permalink)
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I did this today -- went smoothly. Thanks for the writeup.

I noticed there appear to be two cables that were plugged into the factory headunit. One is the antenna, which I plugged into my new HU. What is the other one?
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Old 05-30-2005, 12:42 AM   #7 (permalink)
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Do you have steering wheel stereo controls?
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Old 05-30-2005, 02:03 AM   #8 (permalink)
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No good sir, I do not.
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Old 05-30-2005, 07:56 AM   #9 (permalink)
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i did that 2 days ago, hehe
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Old 07-10-2005, 08:50 PM   #10 (permalink)
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hey i got a question bout that little box with door. is there a website where i can look into that. thank you for taking time to read my message
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Old 07-10-2005, 09:21 PM   #11 (permalink)
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www.toyotaparts4u.com is a TN Vendor here. They should be able to help you out. Show them the picture I posted and they'll know what you want.
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Old 07-11-2005, 07:51 AM   #12 (permalink)
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thanks
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Old 08-11-2005, 12:19 PM   #13 (permalink)
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i read up on this on bypassing the factory amp but i have a 2000 celica, does any body know where the connectors prior to factory amp are located, ive gutted my dash and so far have been unable to find them, any help with this would be greatly appreciated, thanks.
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Old 09-21-2005, 11:20 PM   #14 (permalink)
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When you say the two in the top right are you referring to the two that look like they're plugged in inside the dash? If so then that extra one that hangs taped to the harness that goes into the OEM unit is for nothing?
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Old 09-22-2005, 10:42 AM   #15 (permalink)
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Quote:
Originally Posted by bobcrane
When you say the two in the top right are you referring to the two that look like they're plugged in inside the dash?
Yup.

Quote:
If so then that extra one that hangs taped to the harness that goes into the OEM unit is for nothing?
Not sure, it's been a while since I've checked it out.
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