Acoustic vehicle altering system circuit for Toyota Sienna IV (2020-2024)

BKS BLK WIRE BLU WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DIODE (LEFT END OF DASH) ECU-IGR 2 FUSE ENGINE ROOM R/B 1 GRN WIRE GRY WIRE HOT W/ IGR 1 RELAY ENERGIZED HOT W/ IGR 2 RELAY ENERGIZED METER-IGR FUSE PNK WIRE POWER DISTRIBUTION BOX ASSEMBLY RED WIRE SP- VAS(-) RELAY VEHICLE APPROACHING SPEAKER ASSEMBLY VEHICLE APPROACHING SPEAKER ASSEMBLY 2 VEHICLE APPROACHING SPEAKER CONTROLLER WHT WIRE WHT/BLK WIRE