Review on 🔌 Metra 70-1761 Toyota Radio Wiring Harness - Powering 4 Speakers for 87-Up Models by Noah Lewis

Bought for my son's 2007 Corolla, he wanted to install a Bluetooth/Carplay compatible HU and I didn't want to identify/splice all those wires. I specifically ordered this because the car has a 4 speaker system; When I first opened it up, there were only 2 channels of wire in the speaker port. I was a bit scared at first but found 2 other channels on the main jack. Please note that adapters are shipped with no instructions other than the color code legend printed on the packaging; but they matched the cord of the new stereo, and using the installation guide I connected it in less than 30 minutes. Installing in the car took a little longer due to the wiring for the rear camera (I hide the wires under the carpet/behind trim pieces for example) but using a 1:1 adapter from the Factor input connectors to the aftermarket input wires made the connections a lot easy.