Equalizer w/ Line Driver Help

Why don't you just save up more $ for a nicer headunit? Work a few extra hours per week, cut a few lawns, you're $50 closer to a better headunit, why stop there? Fix the problem correctly instead of forever chasing a band aid. 

^^This is good advice.

And....line drivers hooked up to stock head units are notorious for bad signal/clean sound. Good sound comes from the source to start with.

Exactly get a head unit with at least 4 volt rca's as there is a ton of those out there. JVC's and Kenwoods are made by the same company have have a lot of head units with those features. Check out sonicelectronix.com and iirc JVC has a nice head unit for around 130 dollars WITH 3 sets of 5 volt Rca's that will also come with the wiring harness and dash kit included.

https://www.sonicelectronix.com/item_160685_JVC-KD-T905BTS.html

That head unit has a ton of features including time alignment, 2 usb's, sd card, works with iphone and android. For that price it has so many features on it that 250+ head units come with.

If you are insistent on a double din head unit then you are looking at that 190+ dollar range and there is some nice head units in that range as well but if you are looking for said features like I posted above then there is no reason for a double din as a single din will work just fine with a dash kit.

Remember to look at pioneer's website as there is a firmware update out from march for that unit.