I've read that the MITAH harness is needed if i want to use the stock SSL amp and subs w/ a new headunit. I plan on purchasing a new headunit, subwoofer amp, and a 12" sub and just use the headunit to power the speakers...will i still need the MITAH harness?

 

If you want to use the factory amp you will need an intergration harness. IF your using the new deck to power the speakers then no, you also said your buying a new sub amp?