true ignition source is typically found at the steering column harness.
this wire differentiates from your hu accessory wire (red) in that
during the crank mode it will stay energized. if you are using the
relay for additional battery then you will have to find this wire so
that the batterys are connected together while the car is trying to
start. if you want to isolate it from the primary battery during
crank mode then just use the accessory wire. if you were to tell me the
year make and model of the vehicle i could probably tell where to find
it and what color it was.


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hi all,

need help to install the stinger SR200 isolator, where and what does the
true ignition source means?

can i install it without connecting the "true ignition source" ?


http://stingerelectronics.com/sting_...%20DIAGRAM.pdf

thanks in advance

a cool way to do it is with a relay actually from your headunit remote
turn on so that when your hu turns on the batterys are now parrallel.
or you can just use accessory wire ie.red on hu harness. it is also a
possibility you may want add a switch so that if your front battery
dies then you can parralell them and actually jumpstart your own car
with the aux. battery. if you need any help just let me know.


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thanks for your input.

As i wanted the 2nd battery just to power the amps and nothing else, you
mean I can just forget about that ignition source? or is it a MUST even if I
dont need the 2nd battery to crank up the engine?

thanks a lot!
will have to strip out and take a look at the wires first :P