install advice

Hey everyone! I am installing a 4 channel amp and a mono for my sub. I am using a pac harness to integrate with my stock hu. So i have the 2 sets of rca's for my fronts and rears going to my 4 channel amp and daisy chaining that to my mono to run the sub. Do i need a volume control for the sub or will the outs on the 4 channel control it. i obviously dont have sub control with the stock hu.Thanks.

 
Hey everyone! I am installing a 4 channel amp and a mono for my sub. I am using a pac harness to integrate with my stock hu. So i have the 2 sets of rca's for my fronts and rears going to my 4 channel amp and daisy chaining that to my mono to run the sub. Do i need a volume control for the sub or will the outs on the 4 channel control it. i obviously dont have sub control with the stock hu.Thanks.
I would bridge the 4-channel to the fronts only using the front RCA output from the PAC. Use "y" adapters to input into all 4 channels of the amp. Then use the rear output of the PAC to go into the sub amp. You will have sub-volume control by using your OEM HU's fader control. If you want to hook your rear speakers up, you can wire them to the rear OEM wires on the input side (or the factory hook-up) of the PAC, (they will be pre-amp, so great for rear-fill.)

 
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