03 nautique 206, adding second amp.

[The_Jake_McNasty]

I'm adding a second amp and also adding a house battery with a blue Sea add a battery kit. Below is a list of everything I've ordered. Everything with a check mark I've already bought. Is there anything I'm missing? Also are the amps on the Fuses, circuit breaker etc. Correct?

=================================== NAUTIQUE 206 AUDIO SYSTEM BUILD LIST

[AMPLIFIERS]
• Kicker kx800.5 ✅️ (came in boat)


• Wet Sounds sinister sdx2 2 Channel High✅️ Power Marine Amplifier



[SOURCE & CONTROL]
• Wet Sounds WS-420bt 3-Zone Bluetooth✅️ Equalizer


• Wet Sounds WS-EQ UDM-B under-Dash EQ✅️ Mounting Bracket (Billet Aluminum)



[BATTERY SYSTEM & SAFETY MANAGEMENT]
• Duracell Ultra BCI Group 31M 12V 110AH 800CCA AGM Deep Cycle Marine Battery


• Blue Sea Systems Add-A-Battery Kit (120A Dual Switch + ACR Combo)✅️


• Blue Sea Systems Single MRBF Terminal Fuse Block (For In-Floor Locker)✅️


• Blue Sea Systems Marine Rated Battery Fuse (MRBF) — 125Amp✅️


• Blue Sea Systems 200 Amp 187-Series Surface Mount Waterproof Circuit Breaker✅️



[POWER DISTRIBUTION BLOCKS]
• Wet Sounds WWX-Fuse Combination Distribution Block✅️


• Stinger shd20 Power/Ground Direct-Input Distribution Block✅️



[HEAVY TRUNK WIRING & RCAs]
• Ancor 1/0 AWG Marine Grade Tinned Copper Power Cable — Red (25 Foot)✅️


• Ancor 1/0 AWG Marine Grade Tinned Copper Ground Cable — Black (25 Foot)✅️


• Ancor 4 AWG Marine Grade Tinned Copper Power Cable — Red (25 Foot)✅️

• Ancor 4 AWG Marine Grade Tinned Copper Ground Cable — Black (25 Foot)✅️


• Kicker KMI7 Marine Series 2-Channel Twisted-Pair RCA Interconnect (7 Meter / 23 Foot)✅️
• Note: need to purchase (3) of these sets total



[SMALL SYSTEM WIRE & HARDWARE]
• Ancor 14 AWG Marine Grade Tinned Copper Wire — Black (25 Foot spool)✅️
• Use: Grounding for the Blue Sea ACR relay and the WS-420bt EQ


• Ancor 14 AWG Marine Grade Tinned Copper Wire — Red (25 Foot spool)✅️
• Use: Constant 12V power connection for the WS-420bt EQ


• Ancor 14 AWG Marine Grade Tinned Copper Wire — Blue (25 Foot spool)✅️
• Use: Remote turn-on trunk line from head unit to EQ and both amps

• Mini-ANL Fuses (×2 100amp)✅️

• Heavy Duty 1/0 AWG and 4 AWG Tinned Copper Lugs + Marine Heat Shrink Tubing
===================================

[bturner]

Looks like you've thought this out pretty well. Have you by chance created a schematic/wiring diagram of how you plan to implement all the components? While the list looks well thought out and comprehensive it's tough for me personally to picture where everything is going without a diagram. It would probably be nice to have a few years from now if/when you need to troubleshoot anything.

[The_Jake_McNasty]

BATTERY & SAFETY SYSTEM (Engine Compartment) Grounding & ACR Layout
1. Common Ground Link: Connect Starting Battery (-) directly to Duracell House Battery (-) using 1/0 AWG Black Cable.
2. ACR Ground: Run 14 AWG Black Wire from the Blue Sea ACR ground terminal to this common ground.
3. MRBF Fuse Block: Bolt the Single MRBF Block directly onto the Duracell House Battery (+) post. Install the 125A MRBF Fuse here to protect the ACR charging line.
Battery Switch Routing
1. Starting Battery (+): Connect to Stud 1 on the Dual Circuit Plus switch using 1/0 AWG Red.
2. Duracell House Battery (+): Connect to Stud 2 on the switch using 1/0 AWG Red.
3. COM 1 Terminal: Outputs directly to the boat's factory helm/engine harness.
4. COM 2 Terminal: Outputs directly to the new audio system.
Main Power Run
1. Main Breaker: Mount the Blue Sea 200A Circuit Breaker within 7 inches of the COM 2 terminal.
2. Trunk Line: Run your main 1/0 AWG Red Power Cable from this 200A breaker out to the amplifier storage locker.
POWER & GROUND DISTRIBUTION (Amp Locker)
Power Path (Red Cables)
1. Main 1/0 AWG Red enters the Wet Sounds WWX-Fuse Block input.
2. Install two 100Amp Mini-ANL Fuses into the WWX block slots.
3. Run 4 AWG Red from Output 1 to the Kicker KX800.5 (+12V) terminal.
4. Run 4 AWG Red from Output 2 to the Wet Sounds Sinister SDX2 (+12V) terminal.
Ground Path (Black Cables)
1. Main 1/0 AWG Black enters the large input port of the Stinger SHD20 Block.
2. Run 4 AWG Black from Output 1 to the Kicker KX800.5 (GND) terminal.
3. Run 4 AWG Black from Output 2 to the Wet Sounds Sinister SDX2 (GND) terminal.
MASTER SIGNAL & CONTROL (Dash to Amp Locker)

EQ Power
1. Run 14 AWG Red from an un-fused secondary output tap on the Wet Sounds WWX block up to the dash Constant 12V input.
EQ Ground
1. Run 14 AWG Black from the Stinger SHD20 ground block up to the dash Ground terminal.
Remote Turn-On Layout
Remote In
1. Run 14 AWG Blue from the head unit's remote output wire to the WS-420BT "REM IN" terminal.
Remote Out
1. Run 14 AWG Blue from the WS-420BT "REM OUT" back down to the amp locker. Split it locally to connect to the "REM" terminals on both the Kicker and Wet Sounds amps.
RCA Signal Routing
Run three separate Kicker KMI7 7-Meter RCA cables together from the dash down to the amp locker, keeping them away from the heavy power wires.
Zone 1 Tower Output
1. Connects to: Wet Sounds SDX2 Inputs
2. Runs to: Tower Speakers
Zone 2 Boat (Cabin) Output
1. Connects to: Kicker KX800.5 Ch 1/2 Inputs
2. Set the Kicker amp input mode switch to "4CH" so this single RCA pair runs all 4 cabin speakers.
Zone 3: Sub Output
1. Connects to: Kicker KX800.5 Ch 5 (SUB) Input
2. Runs to: Subwoofer
HARDWARE QUICK-REFERENCE
Main Battery Switch
1. In: Both Battery (+) Posts (1/0 AWG Red)
2. Out: 200A Breaker / Factory Helm
Wet Sounds WWX Block
1. In: Switch COM 2 Out (1/0 AWG Red)
2. Out: Both Amp Power Inputs (4 AWG Red)
3. Fusing: Dual 100A Mini-ANL Fuses
Stinger SHD20 Block
1. In: Common Battery Ground (1/0 AWG Black)
2. Out: Both Amp Ground Inputs (4 AWG Black)
3. Fusing: Unfused (Ground Link)
Kicker KX800.5 Amp
1. Power In: 4 AWG Red/Black from Distribution Blocks
2. Speaker Out: In-Boat Cockpit Speakers & Subwoofer
Wet Sounds SDX2 Amp
1. Power In: 4 AWG Red/Black from Distribution Blocks
2. Speaker Out: Tower Speakers

[The_Jake_McNasty]

I don't know how to create an actual schematic from my phone, don't have a computer. I may swap the MRBF Fuse to a 175a or 200a Fuse