I recently completed my stereo setup.

2 X10 Rockford Prime Low Profile Subwoofers in under the seat box from eBay.
1 500 Watt Rockford Prime Sub Amp
1 4x60 Rockford Prime amplifier
2 JBL Club Component 6x9
2 JBL Coaxial 6.5
Audiocontrol LC2i Line Out Converter.
1 voltage meter (For kicks)

Amp rack bolts to the seat bolts.
I'm using a fuse block for both positive and negative. I know this is not necessary, but they symmetry sparks my joy.
System pounds only use it to about 12-15 on the volume.




For Grounding I used a novel approach. I went to the grounding point on the wall above by the seat's top mount, but then added a 4 GA line from that point to the frame rail under the truck going through a rubber grommet that was already there.. Dead quiet.

Used this T-Adapter so I could run the wires to behind the head unit without cutting any factory wires.
https://www.ebay.com/itm/ISO-SOT-984...72.m2749.l2649
Came from the UK but only took like 8-9 days.

Used this zip wire. https://www.ebay.com/itm/40-Feet-Spe...72.m2749.l2649 had enought left over to do maybe do another car.

 

Clean!

 

Very nice set up! I did car audio in the 80's. I was pulling out 8 track tape players to install cassettes and by the time I stopped installing, I was pulling out cassettes to install cd's. Boy am I old LOL!

 

That amp rack looks great! I'm using the same sub amp. I want to replace my sub box with a dual 10 prefab I found that slides further under the seat than my homemade box does. I will need to move the amp to the back wall like this since currently it sits in the storage cubby underneath the rear seat.