Hi here is my question

I recently got this amp from crutchfield
http://www.alpine-usa.com/US-en/product ... l=MRP-F250

I wish i could have a clean installation what you recommend i was looking for a double bottom in the place were the spare wheel goes but the other day i got a flat tire so i realized how important is carrying one (the hard way), then i look the back of the seat but it isn't as clean as i want it to be and i don't want to loose the trunk size i have a hatch and i need it.

Any help will be useful

Thanx in advance