I purchased an Android touch screen head unit for my 98 ES 300. I got one harness but can't find the harness that would connect the amp to the unit allowing for the speakers to work. Can anyone tell me where I can get the correct harness?

Here is the male end of the connector.

This is what the female end of the harness needs to look like. 2 pins on the left, 3 pins o. The right with 7 pins across the bottom. I ordered and received the first harness which has been installed. I just need the second one that will connect the amp and speakers.

 

Hello,

Did you find a harness adapter for the other connector?
Did you try running the unit without that harness connected?

From the schematic, the wiring pigtail you are asking about appears to be for a CD Changer rather than for an Amplifier, so it shouldn't have any effect on the rest of the system while being disconnected. If your audio doesn't work, you may need to check your wiring or bypass the amp, which, on those particular cars is not really friendly to the aftermarket head units for one reason or another.

Hope this helps and best of luck!