Review on 🔌 Metra 70-8114: Steering Wheel Control Wire Harness with RCA for 2003-Up Toyota/Scion/Lexus Vehicles by Jeff Rhodes

Was almost plug and play (except for the red and black wires which need to be connected to butt/solder connectors). I didn't have to connect RCA. For a 2003 4Runner with JBL Synthesis you just need to connect the red and black wires (twin harness coming from the head unit), connect to the car harness for the wired remote (20 pin connector) and connect 3, 5 pin connector. mm to the back of the main unit. The initialization was done automatically with my Pioneer FH-X720BT head unit. After all the nightmare stories about splicing with a standard belt, I've never had to ask for an easier setup. This is a must for the ASWC-1.