This store is nothing like a cheep-o-depot car audio store. They really seem to be into things like good quality brands and no generic BS. I've been in the car audio and custom auto scene for 23 years now since i was around 19. I've owned 5 DB drag (car stereo volume competition) awards with my JBL competition systems all running HK heads.
Stereo Masters was able to build around my 2011 Honda Accord and re-build my trunk with 1 single 15" Rockford sub with a small macintosh amp that ive had for a year or so. They also did an ipod cable unit and rear sensors. Coming back for a remote start and some HID head lights too.