Technical Power for Amplified Subwoofer

[Michaelsfiat]

Is there an easy wire to tap in to for a through the ignition power source
I want to power an under the seat amplified subwoofer that works off high level speaker input
I want it to go through the ignition so goes off with the ignition when I turn off car
Thanks
Michael

 

[Michaelsfiat]

Any suggestions?

 

[Michaelsfiat]

I guess not!
I’ll continue searching on the internet