NordicWagon

Hello all, I recently installed a 2024 DMH1500-NEX head unit in my father'inlaws vehicle. Used the iDatalink modual and all the harnesses so there was no need to cut and splice wires together. The unit was working great, had sound and all the functions was working. When I started the vhicle this morning, the EQ icon was greyed out and would not work. So i did a restore system on the screen. Once it rebooted, everything is working but there is NO audio. Please can someone help?