Hi guys, I have a 2-way alpine set, however I want to upgrade it, (just got rid of a pair of soundstream 6x9s used as midwoofers) I'm thinking on getting a pair of 8" rockford subs to use them as midwoofers, these could be installed in the backseat side panels, using maybe fiberglass, since there is no room somewhere else. what do you think about this configuration? I will be driving 60W rms to each and with these crossover points (HP +/- 60hz and LP 200).