diode across relay to stop pop

  

https://www.the12volt.com/diodes/diodes.asp            Cathode to 86  anode to  85

Thanks. Would a 1N4004 work?

Here I thought I had the relay but I dont. This is what I have: I have 3 amps. 1 is for my tweeters, 1 is for my speakers and 1 is for my subs. I have my remote turn on wire running to my sub's amp. Then from there I have 2 wires running to the other 2 amps. I dont have a problem with the amps turning on at all. It is enough power in that wire to turn them all on. I also dont have a problem when they turn on right when I turn my car on. But when the car is on, but the headunit is off, when I turn the headunit on, I hear a pop from my speakers (not sure if tweeters pop also) but no pop from my subs. Could someone explane why this could be happening? Thank you in advance.

Where is the remote wire getting power from? Sounds like you have it connected to the switched power source for your deck. There is a turn on delay on nearly every amplifier manufactured. The purpose of the delay is to let the signal coming from your radio to settle down and become useable before the amp turns on. If your amp is staying on when the radio is off, that is the cause of your problem.

the diode across the relay coils 85 and 86 will only prevent a voltage spike to your amp turn on lead. you can use a timing transitor to delay the turn on and off for 3 seconds. that way you can eliminate poping

Ok. Well should I get a relay and place a diode across it, or should I not use a relay and just wire a transister in line with the remote turn on lead?  What size transister will I need and where can I get them? I know basically nothing about them. Sorry.

i would get a relay, one 1amp diode and a transistor.

Ok then simply wire the relay like the diagram above, run a diode across 85 and 86 and use a transistor? How do you wire up a transister?