It took 6 long months of adding a little bit at a time and learning as I went, but I've got it done. My first system is going to be finished tomorrow, I only have to build a bigger fuse holder bracket, secure the amp power wire in it's permanent routing, tuck some wires, reconnect the remote starter, and seal the slit in the firewall wiring harness boot.
Kenwood KDC-MP245 Headunit
4x Pioneer TS-G1643R 6 1/2" Speakers
Alpine MRP-M500 Class D Amplifier (500w RMS @ 2 ohm)
Twin 10" MTX Thunder 5000 Subs (250w RMS each)
34R Duralast Platinum AGM battery (Deka Intimidator 9A34R)
4 Gauge Power
4 gauge Big 3
PAC Bass knob
Sub cutoff switch
100% self installed
Big 3 (The amp wire will be secured in the morning.)
Custom one-off billet aluminum fuse holder bracket
Room to flex
Subs, amp, and if you look close, speakers!
More pics and a video tomorrow.