Hallo suppert
I have the G13 unit ( sept 2024) on my 2017 Rav 4 wiht JBL speakers and I am so far very pleased white it.
Only much later do i notice that the rear and centre JBL speakers are not working .
Can you help me to fix this ?
Thxs Pieter versluis 
@Pieter Versluis
Hello, Pieter.
Please firstly check if you have connected the speaker cables well.
Then please try to go "Amplifier App > Delay > Auto > All" to move the crosshair to the center,
then see if all speakers have sound normally.
In order to help you better, please provide your Order Number to us.

Hello
My order number SP-DA5731. Delevired 24 sep 2024
I Will check for the second time rear speakers kabel
Thxs pieterversluis
@Pieter Versluis
Hello.
Thanks for getting back to us.
Please try to check it at your convenience.