First off I just got it. Love it but it sat for a while so got to put it in the shop for routine mait. but it only has 12,000 miles So I have the infinity setup and I am replacing the speakers with infinity 6020cs in all doors and replacing the tweet's too. I know the system is 2ohm and pre amped by the amp in the front passenger door.

So my question is I want an aftermarket deck but don't want to rewire the speakers due to amp issues. The deck I am looking is Sony Mex-5di, it has no built in amp. So I was thinking I could run it through my existing factory amp, sound possible?

 

Or use any deck with no internal amp, can it be wired to the infinity amp?