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The Metra 70-8113 Amplifier Integration Harness is a precision-engineered wiring solution designed for select 2000-2007 Lexus and Toyota vehicles. It enables quick, no-cut installation by plugging directly into factory radio connectors, preserving the original analog amplifier and speaker setup. With color-coded wires for easy aftermarket radio connection and expert tech support available daily, this harness streamlines your audio upgrade while maintaining factory sound integrity.

| ASIN | B0007WRQQ2 |
| Best Sellers Rank | #33 in Car Audio & Video Wiring Harnesses |
| Brand Name | Metra |
| Cable Type | RCA |
| Connector Type | RCA |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,816) |
| Global Trade Identification Number | 00086429106134 |
| Item Dimensions | 8 x 4.5 x 1.5 inches |
| Item Type Name | Amplifier Integration Harness For Select 2000-2004 Toyota Vehicles |
| Item Weight | 1.6 ounces |
| Manufacturer | Metra Electronics Corp |
| Material Type | Copper conductor with PVC insulation |
| Model | 70-8113 |
| Part Number | 70-8113 |
| UPC | 086429106134 |
| Unit Count | 1.00 Count |
| Warranty Description | 1 Yr Limited |
| Wire Diameter | 0.64 Millimeters |
B**U
⭐⭐⭐⭐⭐ Works perfectly — excellent value
Used these in two JBL-equipped Toyota Sequoias and they worked flawlessly. Fit was exact, plug-and-play with no modifications needed. Installation was simple, harness feels well-made, and the connectors are solid. Saved a ton of time compared to trying to splice or adapt the factory wiring. If you’re upgrading or replacing your factory system in 2000–2007 Lexus/Toyota vehicles, this harness is a no-brainer — great quality and excellent value.
J**E
Worked great, no complaints 👌
Harness worked great for the application, good price too
F**.
Metra is the way to go!
Used on a 2001 Solara with the JBL system worked nicely and plugged in with good snug fit
M**Z
Works perfectly
Works great
B**N
Two ground wires if you have an amp
Just writing a review to talk about my specific circumstance. Unfortunately, a lot of car or radio harnesses differ, so your mileage may vary. I bought this to replace the head unit for my 2002 Toyota Highlander with JBL sound system, which includes a factory amp. The stereo I purchased was a JVC KD-X330BTS with RCA connections in the back for the four speakers. Problem: The wires are color-coded, and this harness comes with a small sheet that details what each wire does, which you can use to double-check with the stereo descriptions. The problem I had was that there was an "extra" black with white stripe wire that I could not identify. After matching only the wires that needed to be matched and leaving this one out, my speakers ended up outputting loud static. Solution: It turns out that this is another ground wire (for the amp?) and needed to be connected to the solid black ground wire on this Metra harness and the solid black ground wire on my radio harness. I did this by twisting the Metra wires together in such a way that they could be inserted into one end of a butt connector, and then crimped. The radio ground wire went into the other end of the butt connector as normal. All-in-all, it's fairly simple to use. However, I'm knocking off a star because it really wasn't clear on the wire diagram that came with this harness that the black/white-stripe wire was another ground wire. Hopefully this helps anyone who ran into my specific issue. (Side note: unlike some others who reviewed this product, my Metra harness did in fact come with an orange (or orange/white-stripe) illumination wire to match my stereo's.)
T**Y
Didn’t work on 2007 Sequoia Limited with JBL
While I’m sure there is a good application for this, it does not work on a 2007 Sequoia Limited with factory JBL system. TYTO-01 is what you need if you are also struggling with the no sound issue.
U**L
Exactly what I needed
Fit perfectly into my stock connector to my Boss be920wcpa on my 2004 Toyota Sequoia. Installation was a breeze- all the wires I needed were the same color so no weird matches like in other harnesses. Definitely worth the price.
V**N
JBL only
Waste of time if you don't have the JBL speaker system, the description does not specify this. IT DOES NOT FIT EVERY TOYOTA FROM 2000 - 2007 Match the harness with the one in the car before starting, i have to buy the 70-1761 harness instead
P**L
Great
A**N
Works as it should! Good quality , highly recommended
F**Y
Buen producto
J**6
Exactly what I needed to complete the stereo install and couldn't be happier with the results. Great product!
R**T
Harness works as described
Trustpilot
1 month ago
1 week ago