Full custom fabricated sound system installed in 1990 Cadillac Brougham. System consisting of a custom fabricated subwoofer box in the trunk, equipped with 18" Subwoofers with the port opening behind the back passenger seats. Custom fabricated door panels with Focal ISS 130 2‑way Speakers, a center channel with ISS 130 2‑way Speakers (twitters were installed in the rear of the vehicle) Sony XAV-AV 200 head unit