You are lucky you don't have the OE Alpine system, otherwise you'd be in for a lot more money/equipment. Your plan sounds OK, but....I would rethink the rear speakers. Either keep them stock, or get matching Hertz coaxes. It's not a great idea to run 2 different brands/types in front & rear. The PAC LOC should work OK for you. If not, step up to an AudioControl LC2i or LC6i. In general, regular subs outperform slim subs. PG makes some good gear, but it's becoming less common. If you go the custom box route, I'd pick a regular 10" over a shallow 12" (unless you can afford JL's shallow sub). Deadening and sealing your doors are worth it, but it will be quite expensive if you are paying someone to do it (especially if they use Dynamat).
Do you have a budget? $4k sounds like a lot for that gear. The parts alone are ~$1700. Bring it to $2K for wire/deadening. That means they are charging another $2K for install! I would find a buddy who can help (it's not that hard). You are also paying a lot for the front speakers. I'd think of a less expensive set (google JBL MS-62C, Morel Tempo, HAT Imagines, etc.) -- especially if you are running off of OE deck w/o a DSP. The sound coming from the crappy 430 will not do a $500 pair of speakers justice.
Do you have a budget? $4k sounds like a lot for that gear. The parts alone are ~$1700. Bring it to $2K for wire/deadening. That means they are charging another $2K for install! I would find a buddy who can help (it's not that hard). You are also paying a lot for the front speakers. I'd think of a less expensive set (google JBL MS-62C, Morel Tempo, HAT Imagines, etc.) -- especially if you are running off of OE deck w/o a DSP. The sound coming from the crappy 430 will not do a $500 pair of speakers justice.
