hey guys i have a 2 way jl audio amplifier and a 12inch punch p3.
I am using the original head unit in my 2005 e55.

What else do i need to buy to maken it work nice and properly with out buying a aftermarket head unit?

thanks for the help in advance

You don't need 2 amps first of all. I am sure you can use 1 JL amp to pump 2 P3's. You don't need to do nothing else. I just tapped into my stock sub and playing through there. Sounds great!

yes i only have 1 amplifier lol. but my stock subwoofer is blown. its not horrible but its anoying to hear it all the time...
so i got an amp and a sub...

disconnect the sub and use the sub wiring with a Line out converter

ok awesome any one in particular ?

i got one from best buy for like $10

perfect thanks