Easily add a bass amplifier to any non-JBL Toyota vehicle from 2018 and up (see list below), without the need to cut into or modify your OEM wiring.  This harness can be seen used on our youtube channel, and includes a radio T-harness and your choice of a line out converter.
 
Line Out Converter (LOC) Options:
1.  Pac SNI-35 2 Channel LOC (Basic, as pictured, does NOT provide a remote turn on wire)
2.  Pac LP3-2 2 Channel LOC (Better quality, does NOT provide a remote turn on wire)
3.  AudioControl LC1i 2 Channel LOC (Premium, High Quality, Line Driver)
4.  AudioControl LC2i 2 Channel LOC (Premium, High Quality, Line Driver, AccuBass)
5.  AudioControl LC2i Pro 2 Channel LOC w/ Bass Knob (Premium, High Quality, Line Driver, AccuBass, Load Resistors)
 
If you are installing a multi-channel amplifier, please order the multi channel version of this harness here which includes speaker wire input / ouput, remote turn on wire, etc: https://www.provobeast.com/product-page/2018-toyota-multi-channel-amplifier-t-harness-kit-for-oem-head-unit
 
THESE ARE ALL NON-JBL TRIM LEVEL VEHICELS.  This harness is for 2 channels ONLY and the Pac harness options DO NOT include a remote turn-on wire.
 
Compatibility guide:
 
2020+
TOYOTA
 4RUNNER
 
 
2019+
TOYOTA
 AVALON
 
 
2019+
TOYOTA
 C-HR
 
 
2018+
TOYOTA
 CAMRY
 
 
2019+
TOYOTA
 COROLLA
 
 
2020+
TOYOTA
 HIGHLANDER
 
 
2019+
TOYOTA
 RAV4
 
 
2019+
TOYOTA
 SEQUOIA
 
 
2018+
TOYOTA
 SIENNA
 
 
2020+
TOYOTA
 TACOMA
 
 
2020+
TOYOTA
 TUNDRA