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Yes, on that amp one blue white is used to turn it on and the other output is to turn other amps on using a relay inside the amp, useful if you are running a bunch of amps, that way you cant overload the relay in the head unit.
Don't run the yellow (#9, +12v) power into the amp from switched source if you need to run a +12v wire for your sub. Run a 10GA wire from batt and fuse at 25A at battery to power both.
Best to attach ground for the amps near to where the radio is getting its ground from, you don't absolutely need to but if you end up with a slight buzz or hum that is likely its cause, basically a difference in ground voltage.
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87 930,
Last edited by 908/930; 09-05-2022 at 04:14 PM..
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