Toyota Tundra 2006 SR5 access cab

The bypass harness fit perfect, the other harness didn't line up with my stock harness to connect to the car wiring, but very effective and fixed my problem. Got a new radio installed and it works great now!

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adapter harness

DID WHAT i HOPED IT WOULD DO.

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Great. fits 05tundra access cab with tweets and amp under back seat rt

worked great. only place to get it. good price!

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Metra 70-8121 Amp Bypass Harness

After I'm try 3 diferent harness finally got the right one , I'm love this product just plug and thats it

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2005 tundra non JBL

Exactly what I need for 2005 tundra non JBL with amp.

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Metra 70-8121 Amp Bypass Harness

Works great needed to bypass the amp it was destroyed.

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If you have tweeters and a factory amp, then you need this!

Thank you, Crutchfield, for carrying this harness. I would appreciate it if the harness and the amp bypass wiring were sold separately, however. If installing your own amplifier system with RCA's, the amp bypass is unnecessary. However, the wiring harness that plugs into the front is all that was needed for my purposes. Also, it is important to note that you will need to re-connect your A/C panel plugs in order to test that all systems are a go. It won't work unless your re-connect them.

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Metra 70-8121 Amp Bypass Harness

Great customer service and information. Fast simple and accurate!! Harness was correct for application and simple to install. should of went with Crutchfield from the beginning.

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Metra 70-8121 Amp Bypass Harness

This harness is the perfect match to the factory connector, has more than enough wire length to reach the head unit, and easy to install. Connector at the dash end is also a perfect match for my '05 Tundra.

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Harness Worked Great !!

Simple and easy install on my 2005 Tundra access cab, just make sure you don't tangle the wires or you will be sitting there sorting out the wires...... I would suggest that you add extra zip ties on the wires and a wire loom to keep it all together nicely, other than that it worked perfectly

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Metra 70-8121 Amp Bypass Harness

Exactly what I needed for my 2006 Tundra with the tweeter in the door panel. Was able to bypass the blown amp hidden underneath plastic below the access seat on the passenger side.

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Metra 70-8121 Amp Bypass Harness

simplified the whole process

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Perfect for the Non-JBL premium audio first gen Tundra

Absolutely perfect for what I need. Spent countless days researching how to connect my aftermarket stereo to my first gen tundra, without the JBL system and the amp in the back, and this product did just that. Spent about an hour or two connecting wires and running the wires back to the amp, and it was plug and play from there. Super simple, and I'm getting crisp music now! I hope everyone that needs this product finds out about it. It's honestly a life saver.

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Awesome

The perfect part for first gen Tundra with six speakers with amp under back seat, non JBL system. Crutchfield is the best in customer service very helpful and easy to follow instructions.

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Metra 70-8121 Amp Bypass Harness

Made install easy as ever

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Metra 70-8121 Amp Bypass Harness

Very simple to install. Plug and go.

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Amplifier bypass harness

Perfect solution for my issue. 2005 Tundra with under seat amplifier gave me fits trying to find a solution to bypass. Crutchfield has the perfect solution with this harness. Perfect fit..plug and play literally.

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Metra 70-8121 Amp Bypass Harness

Harness worked well and was easy to installkiki

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Easy non JBL amp bipass

Everything needed to bypass factory Panasonic amp. You unplug speaker Connector from amp and Plug fits right into that connector..instructions were clear and included. Quality wire and connector. My new system sounds great!

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Metra 70-8121 Amp Bypass Harness

Very easy to install, it did what I needed it to do, solder a few wires, it by passed the amp, plug and play!

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Worked great!

Worked great!

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Metra 70-8121 Amp Bypass Harness

06 tundra with amp under back seat fit perfectly easy to install great product

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2005 tundra non jbl amp under rear seat great harnesss

Best harness ever! Struggling with this upgrade for days. 2005/06 Toyota Tundra extended cab 4 door (two small suicide doors)(Non-JBL) with door tweeters and the amp under the rear passenger seat (under black plastic cover in some cases) Two local car stereo places said it wasn't possible. It was, with this great product. Thanks. Highly recommend.

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Metra 70-8121 Amp Bypass Harness

Amazing customer service. I went to a local store that installs radios and they couldn't figure out the correct harness for my truck. Within 5 minutes of talking to a Crutchfield technician, I had the right part and had it ordered. Part arrived quickly and the new radio is in and sounding great!

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Metra 70-8121 Amp Bypass Harness

2005 Tundra non JBL. Work well except the acc. wire was not hot on the factory harness. I just brought it up from the cigarette lighter and it worked fine.

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Crutchfield response on 5/14/2018

Sorry for the accessory power dilemma, Jerry. On this vehicle, however, the wiring from the factory receiver/climate control trim panel must be reconnected when installing a new car stereo. This connection contains the accessory power needed for the new stereo. It's mentioned in step 8 of our exclusive MasterSheet instructions for the Tundra.

Metra 70-8121 Amp Bypass

Long overdue item no doubt about it..Thank you Metra for supplying easy use equipment nobody else offers us "again". Bought this 2005 Tundra Access (extended) cab and this was the perfect solution to bypass my factory Toyota amp (Pioneer sticker on amp). NON-JBL UNIT ONLY...NOT 4 JBL.. Shame Pioneer/Toyota forgot to add any watts and speakers only 6" to the amp, you would think it would have power behind the 6 stack cd player they put in it too? Nope!! This system was a huge waste of time to even build imho and Toyota should be ashamed of it. Simply unplug oem "output" speaker plug from amp, snap this into the output harness itself and wire it back to receiver, done! I blame Toyota & Pioneer both due to what I know.. Pioneer has always been like burger king as they build exactly whatever a company asked for and still slap their name on it somewhere.

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