This just means it fits. Most double din and single din aftermarket radios will fit with mounting kit and wiring adapter kit. Just did mine this past week.I’ve been searching for a CarPlay-compatible head unit for my 2018 Smart Cabrio (non-factory -navigation, non JBL system) and there is an Alpine unit that keeps appearing, however it appears to only be sold in Europe. Was browsing Amazon and rain into this Alpine with similar model number. Amazon says it’s compatible, but do I dare believe it? Anyone try this unit or want to hazard a guess? Thanks!