I have a 2008 F-150 Screw. I have the box specifically made for the Screw to go under the Back seat. I will be putting the kenwood Excellon shallow mount 10" subs powered by a Kenwood-KAC-X201T, hooked to the factory stereo with a line converter. What would be the best way to hook these speakers to the amp to get some good bass.

 

need a little more info. are the subs single or dual voice coil and what ohm is each coil. is the amp a mono block or 2 channel? are you set on keeping the factory deck? youll have a lot more control with an aftermarket.

 

Im set on the factory deck right now the speakers are 4 ohm svc and the amp is 2 channel and can be ran in mono. but isnt 2ohm stable in mono. is 2 ohm stable in stereo mode. just want to get the most out of the amp and speakers

 

your only real choice is to run each sub to each channel. since its a 2 channel amp your pretty much stuck.

 

x2, warbat pretty much summed it up...

As far as wanting "pretty good bass"... what exactly are you looking for?
150wRMS to each shallow mount sub is not going to be very dynamic...

 

Yup, you will end up clipping the crap out of that amp trying to get more output from the subs, and the clipped signal will sound bad.

Invest in a proper mono amp, and run that 2 channel on a nice set of components in the front doors.