Gathering for my install

[SubaruBass]

starting a new setup for my 2001 Subaru Outback Wagon.

what i have so far

Head Unit: Sony MEX-4100BT

Subs: 2 SoundQubed HDS312 D4s

Box: builder was given free reign cargo area, desired tuning 33hz

Amp: SoundStream Rubicon RUB1.2500D

Power Cable: 1ga fine strand pure copper arc welding cable

Door Speakers: considering my options now.

Front Door Ideas: Alpine Type R, DD CS6.5, SoundQubed QC-HF6.5

Rear Door: whatever goes with front door as a woofer or coaxial

amp for 6.5s: DD C4c or SoundStream Rubicon RUB4.500

System is mainly a daily driver, but will be doing some SPL comp just for kicks