my car stereo has no amp turn on switch how do i make 1?

A

Alex D

New member
also i have a auxilary input and usb will this make a difference
ok so my vr3 stereo has no amp turn on switch so what can i do o that i can have my factory amp working ive heard that you can wire it into the antenna switch and what is the amperage fuse i should use
 
The control line that turns on the amp uses very little current. 1 amp fuse will do. If you don't have a power antenna output you can just wire it to ignition 12 volts.
 
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