Is the infinity sound system amped to all speakers or is the amp under the drivers seat just for the sub?

 

i do believe that it amped to all speakers

 

The stock amp under the driver seat powers all speakers, including the sub.

 

is there anyway you can get an aftermarket HU to work with the stock amp.

 

http://cgi.ebay.com/ws/eBayISAPI.dll...category=50546

That should work to make the Amp work with other Headunits

 

Correct, you will need the mitah adapter. If you don't want to buy off of ebay then you can get it other places online as well: http://www.hifisoundconnection.com/S...id/0/SFV/30046

 

I have a question, I went to Crutchfield and they say that the sub will not work if you swap the head unit, is this the fix? In other words will this allow me to use the sub and speakers or just the speakers. Thanx, dumd newbie.

 

That is my understanding.

 

Here is another thread discussing the harnesses you need: https://www.evolutionm.net/forums/sh...ht=ssl+harness

 

I saw that too, but I have a Pioneer deck and my stereo shop used standard adapters and my sub still works.