I've finally collected most of the bits for my sound system now

Except the head unit which I don't really need yet.
The front speakers you've seen (JL audio C2's) The rear speakers are the same but 4"
The sub I've gone with is a Rockford Fosgate P3 8" shallow mount, with dual 4 ohm voice coils. This little thing is a sweet little unit. It's seriously small but should still punch out some nice bass. I never wanted bone rattling bass so this should be plenty. I'll be wiring up the dual coils for 2 ohms.
My favorite part is the amp - a Clarion XC2510 marine amp. I went with this one because like the sub it is amazingly compact but still has some great features and adjustable everything. It's 700w 5 channels
Specs:
50 Watts × 4 + 200 Watts × 1 Continuous @ 4-Ohms
75 Watts × 4 + 300 Watts × 1 Continuous @ 2-Ohms
150 Watts × 2 Continuous @ 4-Ohms Bridged
Just have to work out what cable it needs to feed it. I will run a dedicated line from the battery (or alternator?) I haven't worked out the cable gauge required yet. It has 2 x 40 amp fuses on the parallel input lines so I guess the amp will be usually running around half that. If it ever pulls more than 80A the fuses will pop (which is good since my alt is only 90A

)
The head unit will be a Sony XAV X100. I've spent many hours looking for a decent mechless, double din touch screen head unit with navigation and all the mod cons. There aren't many options and the ones that do generally have Apple car play
only and not Android Auto. These programs connect to your smart phone and the head unit is almost useless without it. Since I hate crapple the ones with car play only were off the list. That left 3 options one of which is over 3 years old and buggy as hell (its French

) and the other has been "coming soon" for 12 months. That left the Sony which has car play and Android auto. Also has some nice features the cheaper ones didn't.
And here's a teaser of where the sub is actually going
