I was documenting some of the changes I have made along the way in preparation for selling my SMB. I never liked the 12 awg wire going to the CB in the overhead console, the CB has long since be changed, I added various USB chargers or more 12 volt Aux ports to the dash, rearview camera , Tire Pressure system. I also have a bunch of switches to connect and disconnect various devices for the electrical system. The drawing looks like this:
I have three sources of power:
Always on house
- While the main battery can be disconnected, I still have a always on circuit. I use this for the CO and Propane sensor, and control solenoids to connect and disconnect battery.
Van Battery Power
This is controlled by a relay, I could have just used the radio circuit, but wanted more current capability. The existing radio wire is what picks the relay. So essentially it is the same, just more current.
House Battery Power
This is used for devices that I want running off of the house battery, like USB chargers.
The second relay gives me a a switched source of power. This is my version of the SMB radio switch. Things that I want on when running, or switched on with the radio switch.
I put this all in the metal section under the driver side dash.
Relays and Always on power:
I have the three voltage sources and grd coming in on 1 4 pin Deutsch DTP connector.
I have 6 pin Deutsch DT connector that provide power to the overhead console.
and a 12 pin Deutsch DT connector for various devices in the dash area.
All three of these connectors can disconnected and the part removed cleanly.