Well the clarion head unit in my daily driver 98 k1500 is going out, the FM tuner only works for the first few minutes after startup and then goes silent. So I have to put something in it and thinking it would be nice to upgrade to something with Android Auto like my 17 Sierra has for all the phone controls and apps. Problem is I havent bought a head unit in probably 20 years... Pioneer, Kenwood, and Sony I assume are still decent but there are a lot of brands out there I have never heard of. Also wouldnt mind putting a small powered sub under the back seat to give it a little bass, I dont need something to rattle windows any more though. lol