GM will be repurchasing my 2018 and I will be going into a 2019. I had done a massive system upgrade on my 2014 and was hoping to transfer that into my 2018 before it was plagued with issues. Now, I am looking to go into a 2019 and will be changing out the sound system as well so I was wondering if anyone had already started this. I did a write-up on the 2014-2018 non-bose systems and I have no issue doing another DIY write-up and tear down of the truck but it is a lot of work when there is no i