I have a NAVI 600 in my GTC however for the last 2 years I’ve had issues where if I drove through pot holes or cracks in the road my volume would turn down, then suddenly all the controls on the navi would stop working but would turn on after a while or spamming a few buttons. Now the controls...

Hey everyone, new here, I've been looking around online but not really finding what I'm hoping to find so wonder if can get any help? I got a 2014 astra j with the navi 600 set up going on. Is there any way to upgrade this or what are the best options. I've seen the tesla screens they look...

Just wondering if anyone with the Navi 600 with the bluetooth option knows if it supports playing audio over the bluetooth? I know it can pick ups calls but hoping it supports streaming :).