You can use the WLEX5MIC cable if you want to retain the use of the factory (original) vehicles microphone for CarPlay and Android Auto.
Compatible with VLine VL2 and VLite VT2 Infotainment Systems for select Lexus and Toyota stereos (LEX5 and LEX5LS models).
Comes with two red P-Taps and an install guide.
More information about GROM VLine Infotainment System
VLine VL2 or VLite VT2
Factory microphone retention cable WLEX5MIC
2 pcs of red P-Tap
Install guide