Managed to finish up the carpet around the amp rack - not perfect but tidies it up quite nicely. Windscreen washer is finally hooked up and working.
Wiring from crossovers to splits is done (just have to wire amp to crossovers) - 1/0 gauge power cable will be routed to stinger distro block (to be mounted at top tier of rack in centre). 4 gauge will be routed to amp, and second run to small unfused distro block to provide power for the HU, and neon/s.