Auto · Car Stereos / Head Units
Single-DIN or double-DIN: which should I buy?
Reviewer consensus
It's dictated by your dash opening, not preference. Single-DIN slots are roughly 2 inches tall and fit mech-less Bluetooth receivers or motorized-screen units; double-DIN slots are about 4 inches tall and fit modern 6.8–7-inch touchscreens with CarPlay and Android Auto. Crutchfield's vehicle fit data and forum threads on r/CarAV are the most commonly cited resources for confirming which size your car accepts before you order.