Re: Setup for my Z31
just do components up front on a good amp depending on the bass u like id suggest at least a budget 10 setup. an ssa dcon, and the the ia 5.1 is under 400 and would leave you room to upgrade to two dcons if you wanted more.
personally i used the time alignment on my cda-117 to time align my tweeters separate from my mids by bi-amping the set to where the tweets are on the front channels of the head unit and the mids are on the rears. i never even had to amp my components in my car headunit power was enough for me.
sealing and deadening the doors will improve the midbass output from the mids alot and is well worth the time and money.
2014 Chevrolet Cruze Diesel
Big sq install on the horizon if money stays good
2012 Nissan Versa Hatch
Deadened but stock, girls ride now