In-dash amp? in-dash eq/amp?
 

I'm looking for an in-dash Equalizer with integrated amp That would fit into the dash. My Buick has a 2-din deck at the moment. So I would have space for a fm tuner/usb playback deck and the EQ/amp.
Other option
-In-dash amp and EQ with usb and aux input

-In dash EQ and Deck with amp that has an insert before the amp. Line out and then 4 channel in right before the amp. This way I could use the FM tuner or USB playback, have the signal go out at a LINE level to the EQ (also mounted in dash) then out of the EQ (that would be 4 line level channels) Back into the deck, inserted right before the amp.

I couldn't find a deck that is built that way. I don't even know if it does exist... I'm a sound technician at concerts so this is why I thought of this wiring type.

Thanks, AJ.

As far as I know, there has only been one model head unit ever made that had a processor loop built into it and it was in the mid 90s.

In general, in-dash booster EQs don't have much more power than what is built into a modern head unit. It is better to use outboard amplifiers.