My ISM3 screen has not worked for years, but I use a bluetooth adapter from my phone, so I didn't care.

I had the sound EQ set before the screen died, but yesterday, the sound paused and it went back to the default settings which are flat and mostly from the front speaker.

I was looking for a replacement on ebay, but they are $3-400. Then I found this video to upgrade to a new screen with android auto capbility.

2021 Build Guide - Apple Carplay & Android Auto for Saab 9-3 ICM3 Radio Modification Open Auto Pro (youtube.com)

Has anyone here done this? I emailed him to see exactly which cables and such were used but got no response.

Car is a 2005 9-3 Aero 5-speed.