Quote:
Originally Posted by soundman98
you can't use that power supply for anything other than the stock amp.
there are absolutely zero options to add an amp and not run power wiring.
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Quote:
Originally Posted by Mr.ac
Again no amp, factory or aftermarket amp will use the factory door amp power.
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Okay guys, I'm not understanding this. Maybe we are nit-picking over technicalities, but there is a 12 volt DC supply circuit fused at 15 amps available at the factory amplifier location along with ground and speaker level input and output wiring. No, you should not try to run both the factory amp and an additional amp on that 15 amp circuit. No, you can't run a great honking sub-woofer amp on that 15 amp circuit. But, the Alpine KTP-445U (and similar units from other vendors) is rated at 45 watts x 4 channels or can be bridged for 90 watts x 2 channels all while requiring no more than a 15 amp 12 volt supply circuit. I'm guessing the factory amp produces something around 30 watts x 2. Going to 45 watts per channel on the doors really isn't an upgrade but 90 per channel would be noticeable. Or, how about getting a dual voice coil subwoofer and sending 45 x 2 to the doors and 45 x 2 to the subwoofer? The sub isn't going to be (obnoxiously) loud but it would certainly fill out the bottom end.
Would I do this myself? No, I ran 4 gauge from the battery to the sub amp in the trunk. But as long as the OP understands the limitations with this implementation I think it would work. Thoughts?