Need advice from you stereo gurus on a ground up system build

[Txpilot83]

Finally done.

Only used starboard and stainless for all hardware
Made a switchboard that goes under the dash
Not pictured but behind the dash are 2 bus bars for all the accessories and extra room for more
Used a relay and 2 cooling fans to help cool the amps
Added blue LED strings

Heres what I ended up with:

Alpine head unit.
WS 420 (the new one)
ProMariner 20
2 optima group 24 Blue Tops
Perko Switch
Kicker tower enclosures
Kicker 6 pack
JL MHD 750/1
JL 10W3
Kicker KM6200s
JL MHD 900/5

[Txpilot83]

Thanks everyone for all your help (especially MLA and the older guy that works behind the counter at earmark, that guys got a lot of patience). This was my first install and I couldn't have done it without everyones help and advice.

I do need help with tuning though. Especially with the amp settings for the JL 750/1 thats powering the 6 pack. Any ball park settings for the crossover and gain? Same for the JL 900/5 powering the in boats. I've only taken it out once since the install and there is no way I have everything set right. I could hardly hear any music at 60' back while boarding. Once again, Thanks.