Hey
I just installed my stereo a few weeks back.
First, if you are planning to maybe upgrade to more amps in the future I would run 4 gauge to a distribution block in the back, then run 8 gauge from that...
Unfortunately I couldnt get through the firewall on the pass. side & believe me I tried!
I ended up bringing it up the pass side of the engine compartment, across the back, mounted the inline fuse, then went through the large one that wiring comes through on the drivers side. From there i just stuffed under carpet until I came out in the back...
For remote & rca's I came from the deck down to the drivers side of the centre console, then under the console & right up the middle. Keep it away from your power!
For main ground I went onto a body screw on the deck in the cargo area, drivers side.
Only pic i got. Instead of distro block im using the power cap...
Not mine but real clean!
S.