i installed mine and used the TYTO -01 kit i think its metra but could be wrong it uses the factory amp, therefore all your speakers will work i have had only one problem and that was finding someone in the area that sells it u can find them on ebay or somethin anywhere from $75 to $150 im assuming you have the car kit aswell that should run you no more than $20, good luck Metra TYTO-01 JBL Amplifier Interface Harness Metra Axxess ASWC-1 Universal Steering Wheel Control Interface $51.24. SCOSCHE TA2079B 2003 to 2009 Double DIN Stereo in-Dash Installation Kit Compatible for Toyota 4Runners with a Factory RDS/JBL System. Add to Cart: Metra TYTO-01 2001 and Up Lexus and Toyota amplified audio system interface $65.99 Axxess ASWC-1 Universal Steering Wheel Control Interface for Aftermarket radio $45.99; Metra 70-8114 TurboWires SWC add-on Wiring Harness for steering wheel control Integration for Toyota $7.99 learn how to remove the factory stereo on a 2006 2007 2008 and 2009 toyota corolla we will also go over the parts needed to install the stereo and also the process to install the stereo into the Retains Factory Amps: The Axxess Integrate TYTO-02 interface will retain your vehicle's factory amplifier and fade control (when applicable). Factory Aux Input Retention: The TYTO-02 interface module will retain your vehicle's factory aux input through its stereo RCA jacks.Your aftermarket head unit will need to have a rear Aux input. Allows installation of an aftermarket radio using the existing factory wiring and connectors JBL amplifier interface harness For select 2001-up Toyota vehicles with amplified system Adjustable input gain USB Turn-on Adapter Wiring Harness For select 2003-2008 Toyota Vehicles with JBL/JBL Synthesis Audio Systems Adjustable input gain compatible for USB update 10 pin harness 12 pin to 20 pin Shop AXXESS Interface for 2005 2007 Toyota Vehicles White at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up. Price Match Guarantee. tyto-01 installation instructions * important warning this product includes instructions for installation which must be carefully followed. the instructions are worded in such a manner to assume that the installer is capable of completing these type of electronic installations. if you are unclear as to Axxess TYTO-01. The Axxess TYTO-01 wiring interface lets you install an aftermarket receiver into select 2001-10 Lexus vehicles without bypassing the premium factory system. The interface provides an amplifier turn-on signal, speaker-level connections, and a 12-volt accessory power lead for your new stereo. Warranty: 1 year. METRA/AXXESS TYTO-01 AMPLIFIER TURN-ON INTERFACE: Allows the Replacement of the Premium OEM Radio or JBL Radio with an Aftermarket Headunit while Retaining the Factory Amplifier or JBL Amplifier and Speakers. Provides 12 Volt Accessory Power (10 Amp). description:? 1 the tyto-01 interface is designed to allow the user to replace the oem radio with an aftermarket unit in select 2001-up toyota lexus vehicles and retain the use of the jbl and jbl snythesis amplified audio systems 2 es330 2004-2006 3 es350 2007-2010 4 es300 2002-2003 5 gx470 2003-2009 6 is350 2006-2009 description:? 1 the tyto-01 interface is designed to allow the user to replace the oem radio with an aftermarket unit in select 2001-up toyota lexus vehicles and retain the use of the jbl and jbl snythesis amplified audio systems 2 es330 2004-2006