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Old 04-23-2020, 05:19 AM   #4
fatboydean
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Join Date: Apr 2020
Drives: 2016 BRZ Hikari
Location: British Columbia
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Quote:
Originally Posted by LimitedSlip View Post
For just a head unit, there is no need to run any wires through the firewall. With the exception of the overhead microphone (the factory mic doesn't seem to play nice with anything other than the OEM HU) all of the power and speaker connections are present in the dash and usable by most any aftermarket HU. The easiest thing to do is buy from Crutchfield and pay the extra few dollars for them to supply a plug-and-play wiring harness. No cutting of factory wiring and you can return to stock in about 10 minutes if you want.

If you want to install an additional amp for a sub-woofer then you will likely need to run a cable to the battery.
Thanks I think I will need the headunit and also a multi channel amp to power a set of new speakers replacing the factory speakers.
From my understanding there is a factory amp as well. I would like to use its power supply for the aftermarket amp if possible. Any recommendations?
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