Yomikoo Aux Adapter, Car Stereo CD Changer AUX 3.5mm Interface Adapter for Toyota 5+7 Pin 1998-2002 Corolla,1998-2002 Land Cruiser,1998-2004 Avalon,1998-2003 Highlander,1998-2004 Camry

The installation for this was super easy, the only difficulties came from getting the car itself ready. This device itself is plug-and-play and sounds good.

It works for my 03 Highlander, my only complaint is I can hear my alternator through the speakers which is slightly annoying but goes always when playing music semi loud. I don’t believe it’s the products fault but I’m sure with some optimizations to the circuitry it can be solved. Overall pretty good, cheap and just plug and play.

Very easy to install, drilled a hole in the plastic and made a nice oem aux plug in. Works great. Definitely follow the videos about the ground issues

out of the box the sound was fantastic, except that whenever the car was on, there was horrible interference. I could hear everything from the alternator to the fuel pump and AC blower fan, which to me indicated some sort of problem with grounding as the problem only occured when a device was connected, but it could be any device.to reduce noise the toyota audio system uses balanced audio , but 3.5mm jacks are not balanced. to prevent noise the device would need to have a seperate analog ground.as it seems it did. upon taking it apart, the ground from the 3.5mm jack was simply connected to the wrong point, to the main ground, not the analog ground. the ground should be connected closest on the connector inside to the other two wires. I just unplugged the JST XH connector, removed the ground pin with a screwdriver, and put it in the third pin in that connector, according to the labels on the back of the PCB. with that modification, it sounds just as it should without any interference.to be clear it may be a fluke that mine had this incorrect and everybody has theirs correct, but if somebody has this problem I hope this helps.

Functions and fits perfectly on my 2002 is300. This is probably the most cost effective and easiest solution if you want to replace CD player to Aux. I searched a ton of videos and ways to make it work in the is300 and this is by far the easiest and most cost effective.