What causes turn-on pop? I be forgettinnn

[danteBirosel 5,000+ posts]

Is it the same issue for the grounds if I get the pop when I turn off my car???

 

[praztek 10+ year member]

Found This.

" do have this annoying pop when the head unit is powered on. I asked Crutchfield about that and they said to get a voltage regulator from Radio Shack that only cost a few dollars. It seems there is 12V going to the AMP and it needs to be 5V and thus the voltage regulator.

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Second Option:

just a FYI for anyone that has to deal with one of these cars, a potential problem when installing an aftermarket deck. the subs in the doors both have amps in the drivers kickpanel. metra makes a harness to adapt to these, i believe it is a 70-5521. the 2nd plug in there goes to the factory sub/amps. don't know how common it is, the lincoln mark LT worked just fine plug and play. the mustang shaker 500, the subs would pop badly when you turn the car on, or the deck on. i put a 5.6k resistor inline with the remote turn on lead going into the factory harness, and the pop was eliminated. i guess it was just too much voltage kicking on the factory amps, and caused a bad pop.

06 Mustang GT