07 chevy tahoe radio replacemnt help

[Fixing07TahoeSolo]

Hey there, went to audio repair shop and they said my whole system was shot, no sound through any door speakers just tweeters, and radio was bad. I was quoted over $3k for equipment and install. I can do door speakers myself but never have done the radio and not sure what I need. They did a speaker demo of amp vs no amp install and I was fine with either, just looking to stay under $1k for everything. Any good brands or install videos for a touchscreen 8in with navigation and Bluetooth
?

 

[Fless]

One place you can look is www.crutchfield.com. They'll show what fits but you don't need to buy there. Just get ideas.