The Metra Electronics 95-6511 Double-DIN dash kit is designed to help install a standard 4-inch-tall Double-DIN aftermarket radio in select 2007-up Chrysler and related vehicles. It includes ABS trim panels, mounting brackets and hardware, and two trim sizes for long-nose vs short-nose radios, but some installs may require minor adjustments or trimming for a clean, gap-free look.
The Metra 99-7505 is a Mazda-specific dash kit that lets you install a single-DIN (2-inch tall) or double-DIN (4-inch tall) aftermarket radio for select 1995 to 2006 models. It’s contoured for a factory-like look and reviewers generally report straightforward installation and strong fit, with the main tradeoff being that you may need to reuse some hardware from your stereo (and fit can be model-specific).