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Discussion Starter #1
my buddy is runnin 2 alpine PDX.1000 amps does he need a loc or can they accept the oem signal? do you just tap the speaker signal and run the RCA to the amp imput.. and run another RCA out to the other amp in?
 

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The output from the radio is a balanced signal, so you need to make sure that the amp will accept this. I would recommend calling alpine and asking one of their techs if that amp will accept a balanced input.
If it does accept balanced inputs then buy a set of RCA's, cut one of the ends off and each end should have a positive (wire connected to the middle prong) and a negative (wire connected to the outer ring) and then tap these into the output of the factory radio going into the factory amplifier.
 

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Discussion Starter #3
sweeet! thanks dude


another quick question. when you install a headunit with a regular wiring harness does it eliminate the stock amplifier?

my buddy is getting a aftermarket Hu that does like 4 volts and if the oem does 5 volts he says he wants to use that signal.
 
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