2009 Alpina D3 Bi-Turbo

Two Stealthboxz (custom made around my vehicle for mass production)

Looking to get a double-din dvd player installed, Alpine speaker upgrade, also two subs running alongside Alpine speakers, Black kidneys (maybe), gauges in place of ashtray, would like a dump valve and front mounted intercooler if possible. All of these are just for starters and need help making it reality as nobody seems to wants to work on my vehicle!!