Features:

Rockville RMH200B Universal Single DIN Marine Radio Receiver Waterproof Gimbal
Housing With Wire Pass Through in Black
Also Available in White
U-shaped Mounting Bracket for Deck or Overhead Installation
ABS Housing with Polycarbonate Front Cover 
Stainless Steel Mounting Hardware 
Polycarbonate Bracket 
Protects Your Stereo From the Elements 
Smoke Colored Housing Window 
Spring Loaded Flip-Up Door 
Support Shelf In Rear Of Housing For Radio 
Pre-Wired Power(3 Wire), Speaker(8 Wire), RCA(2 Wire), Antenna
Makes installation easier! Here is how it works. You take the speaker leads of
your wire harness (for the 4 speakers) and connect them to the 8 wires inside
the housing. You now connect the power and ground and remote wire. If you are
using an external amplifier, then connect the RCA's as well.  Now you take the 8
speaker leads in the rear of the housing and connect those to your speaker
wires. If you have an amplifier you will plug the RCA in the back of the unit to
your amplifier. You will also run the power wire from the rear of the housing to
your 12 volt power source. You will connect the black ground wire to anything
metal. You can also connect the remote wire to the amplifier. What is amazing
about this is that because we have this feature it allows the wires to be
enclosed in a waterproof housing which will ensure all your wiring and your
receiver last for a long time.
Fully enclosed design provides protection from the elements
Stainless steel mounting hardware included
Rubber grommets for cable protection
Positive locking door mechanism
One-piece mounting bracket
Fully adjustable mounting angle
UV Resistant Plastic 
Dimensions:9.5"W*10"D*4"H(Units) 9.30"W*1.10"D*3.75"H(Bracket)