Re: Fan Doesn't turn off when car is off!!
You can't power it from the remote lead directly, it can't supply the current needed and might damage the HU. What you can do is use a relay. A relay is a switch that uses an electric signal (the remote turn on lead) to switch a higher current power source. Basically you would run a 12V constant power wire to the input of the relay. The ground terminal for the relay is grounded. The trigger terminal is connected to the remote from the HU and the switched output is run to both the amp and the fan. The fan is then grounded as well.
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