Eonon UA13-Plus Android 13 head unit. Internal microphone disconnection to improve call quality.

[@jmax6614]

What did you use to cut the tract?

[@erictechUK]

Use a scalpel or sharp craft knife.

[@alexs5373]

How was the gt86 install ? I'm looking to replace the defunct touch & go. Where are you buying the plus unit how much ? Did you do a custom harness

[@erictechUK]

GT86 install is very easy. Purchased Toyota brackets for aftermarket radio fitting (Toyota part number SU003-01962 and SU003-01963 - left & right) at a cost of about £6. Purchased wiring harness adapter from AliExpress - about £10.

[@alexs5373]

@erictechUK Appreciate videos like yours, are you a radio engineer ? I've mailed Eonon I'd go for the UA12S-PLUS-6G it's on offer & sports a qulcom soc ! Not sure if it's genuine android 13. I've figured most of the car wiring as no steering controls or factory camera, one black wire from the antenna not sure about, do you know? taken aerial apart I'm guessing it's a built in signal amplifier due to the circuit board, needs power or ground ? not sure how to test that. I've heard that some radios send power down the centre coax core, there is an adapter for this around the interwebs along with iso harness and usb retension adapter for center console.

[@erictechUK]

Eonon A12 and A13 series both run genuine Android 13. A13 series is fine if you just want to use CarPlay/AndroidAuto. A12 is better if you want to run apps on the unit itself. GT86 is a very easy install indeed. Standard Toyota connectors. Get a 16-pin headunit-to-Toyota adapter - e.g. from AliExpress seller Burgim, Upindo, Skyfame or others. Around US$10. Don't bother going via ISO. Adapter will have 16-pin plug for the Android headunit going to Toyota connectors: 10-pin (power and front speaker), 6-pin (rear speaker), radio antenna connector with power feed pre-wired, plus 20 and 28 pin control connectors (use if have SWC). It will also come with a USB retention adapter. Its plug in and go. Takes literally two minutes.

[@9Ayir]

Is there any software way or option to disable the internal mic ?

[@erictechUK]

No. An option to switch between external and internal mic shows up in the 'Settings' menu, however it has no effect. The external and internal mic are wired together inside the unit.

[@9Ayir]

@erictechUK i can't find that option in the settings Brand "joying" I tried to plug the external mic, and it works But the internal one is also active, which has noise problem

[@erictechUK]

​@@9AyirThe external and internal mic are connected together inside the unit. You cannot disable the internal mic in software, you must cut its wiring as shown in the video.