RMH200B

Keep your marine radio protected. Install it right the first time. The Rockville RMH200B is a universal single DIN marine radio housing built to shield your stereo from salt spray, UV exposure, and moisture. Its pre-wired pass-through system makes installation clean and straightforward — all connections stay enclosed, dry, and protected inside the housing. Why You'll Love It Waterproof, fully enclosed design — ABS housing with polycarbonate front cover blocks water, salt, and spray UV-resistant construction — won't fade, crack, or degrade in direct sun Pre-wired pass-through system — power (3-wire), speaker (8-wire), RCA (2-wire), and antenna all routed inside the housing Spring-loaded flip-up door — positive locking mechanism with smoke-colored window for easy, protected access U-shaped mounting bracket — deck or overhead installation, fully adjustable angle Stainless steel mounting hardware included — corrosion-resistant for marine environments Rubber grommets for cable protection — prevents chafing and water intrusion at entry points Universal single DIN fit — compatible with most major marine radio brands Perfect For Boats and watercraft ATVs and powersports vehicles Outdoor and off-road installs Any environment where weather protection is critical What's in the Box RMH200B waterproof gimbal housing U-shaped polycarbonate mounting bracket Stainless steel mounting hardware Specifications Housing material: ABS with polycarbonate front cover Bracket material: Polycarbonate Hardware: Stainless steel Window: Smoke-colored, spring-loaded flip-up with positive lock Pre-wired: Power (3-wire), Speaker (8-wire), RCA (2-wire), Antenna Unit dimensions: 9.5" W × 10" D × 4" H Bracket dimensions: 9.3" W × 1.1" D × 3.75" H Also available in White (RMH200W) Advanced Details — Deep Dive How the Wire Pass-Through System Works The RMH200B's pre-wired pass-through is the key feature that sets it apart from basic housings. Here's how it works: connect the 4-speaker wire leads from your radio's wire harness to the 8 speaker wires inside the housing. Connect power, ground, and remote wire. If you're running an external amplifier, connect the RCA leads inside the housing as well. Then route the 8 speaker leads from the rear of the housing to your speaker wires, and run the RCA from the rear to your amplifier. Power wire routes from the rear of the housing to your 12V source; ground connects to any metal surface. The result: all wiring is fully enclosed inside a waterproof housing, protecting both your connections and your receiver from moisture and corrosion for the long term. Mounting Flexibility The one-piece U-shaped bracket supports both deck-mount (standard upright) and overhead installation. The mounting angle is fully adjustable, so you can position the radio face at the ideal viewing and control angle regardless of where it's mounted on your vessel or vehicle. Rubber grommets at all cable entry points prevent chafing and seal against water intrusion. Compatible Radio Brands & Models The RMH200B fits most standard single DIN marine radios. Confirmed compatible models include: Brand Model Aquatic AV AQ-MP-5UBT-S Boss MR508UABS Clarion M303 M508 RG9451 Dual AM505BT MCD237BT MXD378SXM JVC KD-R99MBS KD-X33MBS Kenwood KMR-D372BT KMR-D375BT KMR-D768BT KMR-D772BT KMR-M322BT Sony MEX-M100BT MEX-M71BT NavAtlas NA605BT Power Acoustik MCD-51B