2014 silverado subwoofer

[Tactical enigma]

Hey guys I wrecked my 2003 Silverado and have recently gotten a 2014 silverado. Wow things seem like they have become a lot more complicated in the stereo world with these new factory setups. I was running 2 JLW0 v3-4 on an alpine 500 watt. I was very happy with the setup as you guys reccomend it. 

My question is, I want to run dual downfiring 10" subs and I have no preouts and no idea what I am doing and where to start to get preouts. I want to retain the factory head unit but I want it to sound good. 

As a side note I have weathertech mats in the truck and am not sure if they will have any effect on subwoofer clearance. Any input would be appreciated. 

Thank you all for your help and knowledge 

Justin

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[ckeeler11]

What Alpine amp? If it has speaker level inputs then use them and tap into the speaker wire for a signal. IF not then you will need a LOC. Use the LOC to tap into the speakers and then it will have RCA out.

If the factory radio has any bass roll off at higher volumes the LOC should have some correction for it like the Audio Control LC2I.

 

[Tactical enigma]

The amplifier that I have is the alpine mrv m-500 

What way would sound better? It appears that this one does have a speaker level input. Last time I had it connected via rca

 

[ckeeler11]

I doubt you would notice any sound quality difference.