Amazon.com: Add an Amp Amplifier Adapter Interface to Factory OEM Car Stereo Radio System for Select Toyota Vehicles- Add Subwoofer Bass Amp - No Factory Premium Amp- Vehicles Listed Below : Electronics

 

Thank you. This sounds good, but unfortunately a purchaser commented that "This line out converter ONLY utilizes the front speakers, rendering your stereo unable to fade front to rear. It also ties your front speakers together so you now have ONLY MONO sound and no front to back control. That’s right, by using this device you will turn your stereo into a mono radio."

I wish I could find a pin diagram for the connector. Then I could do it myself!

 

Thank you. This sounds good, but unfortunately a purchaser commented that "This line out converter ONLY utilizes the front speakers, rendering your stereo unable to fade front to rear. It also ties your front speakers together so you now have ONLY MONO sound and no front to back control. That’s right, by using this device you will turn your stereo into a mono radio."

I wish I could find a pin diagram for the connector. Then I could do it myself!

You can see the connector here. Only problem with factory radios is they tend to have bass roll off. Changing the 8 in radio is easy.

This is a great start. Let me know if you have any questions.

Pioneer DMH-WT8600NEX installation into a 2021 XLE HiHy

I picked up my 2021 Highlander this weekend, and was itching to do some mods. I apologize in advance, I only have post-install pictures because it's too dang hot to take pictures during the install around here. My last real vehicle was a 2013 Rav4 that I had done a straightforward speaker and...

www.toyotanation.com

 

Thank you. I guess I need to know which pins are which now.

 

To make a quick speaker tester, take wire and connect it to a 9 v battery. Tap the wires to the speaker wires and they will make a pop noise. Do not leave them on the wires! You will be able to figure which speakers are which.

 

Using a decent Line Out Converter, like the Audio Control LC7i, will allow you to merge the different signals from the radio into full spectrum audio with RCAs. It's small enough to fit behind the dash and has the added benefit of being able to defeat bass roll off.

As for which speaker wire is which, the best I've found is -

• Left corner dash speaker: Positive (+): black or violet/light green, Negative (-): white or violet/orange
• Right corner dash speaker: Positive (+): violet/brown, violet/white, or pink, Negative (-): violet/black or white
• Left front pillar tweeter: Positive (+): dark green, Negative (-): white
• Right front pillar tweeter: Positive (+): blue, Negative (-): white
• Left front door speaker: Positive (+): pink, Negative (-): red
• Right front door speaker: Positive (+): pink, Negative (-): red
• Left rear door speaker: Positive (+): red, Negative (-): white
• Right rear door speaker: Positive (+): red, Negative (-): white
• Left hatch door speaker: Positive (+): red, Negative (-): white
• Right hatch door speaker: Positive (+): black, Negative (-): white
• Rear side panel subwoofer: voice coil #1 Positive (+): purple/violet, Negative (-): purple/red
• Rear side panel subwoofer: voice coil #2 Positive (+): purple/black, Negative (-): purple/white

 

there are others, but crutchfield is a pretty user friendly vendor. they have lots of instructional videos etc. some connectors i found there:
Wiring Harnesses at Crutchfield