Fixed Problem with 2002 Highlander

Perfect. On a 2002 Highlander with factory amp, BYPASSING amp using this harness provided a 100% resolution to a vexing problem I was having with staccato impulse noises on speakers, primarily when using phone. Also, Crutchfield was unbelievably helpful in assisting me in diagnosing this issue. Very pleased with Crutchfield, ten stars.

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Metra 70-8116 Amp Bypass Harness

We originally didn't buy this to bypass the amp in my Toyota Highlander with the stock amp, but Crutchfield got this sent out right away, and they were very understanding.

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2001 Toyota highlander Amp bypass wiring

Arrived quickly well made product haven't installed yet but so far very good.

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Metra 70-8116 Amp Bypass Harness

Though tracing it through the car is a bit of work, this cable totally silenced the audio issues I was having and made my sound system sound pristene!

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Metra 70-8116 Amp Bypass Harness

Super easy to install with the wiring harness connection guide that it came with

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Metra 70-8116 Amp Bypass Harness

Couldn't be more straight forward for the wiring. Plenty of wire to get from the amp in the back to the front.

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Too Easy!!!

Great help makes all installations a simple task!

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Metra 70-8116 Amp Bypass Harness

I will installed it in summer of 2020 . but i like what you say and i let you know then. Thank you.

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Metra 70-8116 Amp Bypass Harness

Great add-on, thanks!

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Metra 70-8116 Amp Bypass Harness

Included harness made it easy for installing head unit to factory wiring

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More wiring required on 2000 Land Cruiser

Works to bypass amp and get speakers working. Nothing in instructions that tells you the power to head unit is disconnected when you use this. You will have to make 3 other connections to get power to head unit. Info is available online, but should be included.

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Metra 70-8116 Amp Bypass Harness

Worked great in my 2004 Celica GT-S to bypass the amp and get a better sound range going to my rear speakers. Only complaint I have is that the radio harness lacks a pin for the dimmer wire, but other than that everything works.

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Exactly what I needed

Worked great for my 2004 Highlander. Took a while to run under everything from back to front of car but that's a poor design from Toyota. Instructions were very helpful.

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Metra 70-8116 Amp Bypass Harness

Excellent product. Since the amp for the stock JBL sound system was located In back of my highlander it took a while to route back through the vehicle but worth doing

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Bypass it!

This harness worked perfectly in bypassing the factory amplifier in my 2003 Toyota Highlander with the factory JBL sound system; process took me roughly an hour. Once my stock speakers were connected directly to my aftermarket JVC head unit (22rms), the sound was noticeably improved. Crisper highs, clearly mids and the bass was smoothed out some. Next step is to replace the stock speakers.

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Big wad of wire

Basically this is a rewire more than it is a bypass. I thought there would be a short connection from the new radio to the existing plug. That is not all there is to it. You have to snake a big wad of wires from the head unit to the amplifier area under the passenger seat. Nothing about this is simple so buyer beware. The wire harness has to be routed from the head unit, under the passenger side carpet, and under the seat. You have to pull the passenger seat to get to the amplifier connection.

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Metra 70-8116 Amp Bypass Harness

Great

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Weak terminals

I installed this on a 2002 Toyota Land Cruiser. I was unable to use the ground wire on this harness. I consulted the factory wiring manual and determined I had to run a separate ground in the dash area for the new head unit. I wired it all up and the power antenna was not working. I called Crutchfield and they told me it was a vehicle problem if it was all hooked up correctly. My factory stereo had been operating the antenna just fine. I used a volt meter and determined there was no power out of the connector going into the antenna yet there was power going into the connector. I separated the connector and looked at the male terminal. It had recessed so far back that it would not make contact. I had to slide the terminal inside of the connector further into the other side. It began working after that. The connector did not appear to hold the terminals in very well. It did work after I fixed that issue. It could have been caused during installation or it could have been faulty. All is well now and I would recommend this.

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Perfect Solution

The directions were lacking but a quick call to tech support got me on my way. Easy to install, does the job perfectly.

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Worked very well

4

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Nice

Not direct plug and play, some wiring needed for the land cruise but if you know what your doing its not an issue.

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Metra 70-8116 Amp Bypass Harness

Works great. You'll need upholstery tools to get to the amp plug behind the rear seats in the 2002 Highlander w/ JBL. I cut the 4 wires for the subwoofer since they weren't required. Ran the wires under the R passenger door trim up to the radio. Would be nice if there were instructions on how to get to the rear amp plug...

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Toyota Landcruiser owners must read

If you own a 2000-2002 toyota landcruiser, this will work but is not plug and play. First off, Toyota has a feedback loop for power to the head unit via the factory amplifier. The radio connections in the upper dash have several feeds coming from the factory amplifier. So if you use the factory connections in the upper dash and you are changing out the amplifier you will need to tie wires together at the amp location for power, accessory and ground. In this kit, there's the 17ft long speaker harness that plugs into the amplifier under the passenger seat and there's also another harness that has red, yellow ground and blue.. This is where the problem is. By simply plugging in the harness behind the old radio, your new headunit won't work. You must remove three wires under the passenger seat and crimp or solder them for your power. Also the ground wire must be attached to the chassis and not your typical "black" wire behind the radio. I called Crutchfield support twice and they only had the info on the ground wire. THIS ONLY PERTAINS TO THE 2000-2002 Landcruiser.

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Crutchfield response on 7/1/2014

This is the kind of problem that our Tech Support team loves to solve. They have looked into it and will be adjusting our database for this harness. As a Crutchfield customer, any time you run into an unexpected problem, our support and troubleshooting is only a phone call or email away.

connects

Cherry connection

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Does the job - needs more info when bypassing amp

It works well and the wiring instructions were fine, It did not include instructions on bypassing the amp however. I had to call for tech help a couple of times. Also, when bypassing the amp you lose the use of the large 'woofer' speaker on the rear deck - that was never disclosed either. Installed on a 2002 Avalon with JBL system (4 speakers plus woofer).

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Worked Great!!!

The Metra Factory Integration Adapter worked great. It was easy to install without cutting any factory wires. When I get ready to get rid of this car I could put the factory system back in in less than 30 minuets. Glad I found this before I started cutting the factory harness out.

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Perfect Fit

Used on my 2002 Toyota Avalon. The instructions were very clean and all the colors matched up perfectly to my new head unit.

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Extra wiring needed at the amp

Adapter works, I have 2000 Toyota landcruiser, no issue with the HU harness adapter. However there are two wiring harness with the factory amp. If you just plug in the metra adapter, without making 3 other wire bypass connections, your radio will not have power. Since Toyota radio power is getting feed from the amp. I was on phone with Crutchfield about this 3 times. Even the crutchfield techs weren't aware of that.

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Metra 70-8116 Amp Bypass Harness

Worked fine with my 2001 Land Cruiser for the connections that were provided on the adapter.

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Metra 70-8116 Amp Bypass Harness

Worked perfect

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Amplifier Bypass Plug and Harness

The hard part here was finding the location of the Amplifier behind the rear seat under the carpet in the cargo area before I could plug in the Bypass plug. I called tech support and they emailed me pictures that were very helpful in finding the amp to bypass.

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