Another scenario which I am thinking about is to have my GMRS radio which has it's (+) straight from the battery (fused of course). It turns on using a relay that is triggered by the ignition on. However, when wheeling, sometimes i don't want the radio to turn off when I turn the car off. I was thinking of having a switch to enable the radio to be on even when the car is off.
In this scenario I don't see the issue of two separate paths from the same power source and having varying voltages due to voltage drops along the different paths. The 12v is coming from the same wire but splits off just at the relay and then combines after the relay. Looks to be sound....
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2003 4Runner Limited 4wd V8. JBA UCA, Dobinsons MRA Front Coilovers, Dobinsons MRA Long Travel rear. Cooper AT3 XLT 285/70R17
91 Ext Cab 4x4 Yota, black with 4" front IFS trailmaster lift, 3" Downey rear springs, Downey Rubicon extended shackles, and 2" body lift. 35" BFG M/T w/ 4.56. Centerforce II clutch, Rancho 5000s all around and Rancho traction bar, K&N Air filter, Flowmaster, ARB Rear Diff Air Locker, Custom "Mad Eyes" light covers, Extended Diff Breathers, Hella Vision Plus Headlights. [SOLD]
