2005 gmc envoy_sle
hey guys, this is my first post so take it easy on me lol. i searched before i posted this and i just wanna make sure i've got all my ducks in a row. for starters, i've got an 05 Envoy, non bose, no onstar, no steering wheel controls or rear audio controls and i just bought a JVC KW-AVX810 on ebay that i plan to install in it. now from what i've read on here i need to buy an adapter to keep the factory door chimes but does that adapter allow the DD to still stay on once you turn the truck off before you open the door like the factory unit? what about a dash kit? i need one? is that adapter the only thing i need for installation? i'm going to get a shop to install it for me but i want to make sure i have everything i need first. thanks guys and sorry for the newb questions lol.