hi everyone! newbie here! what would you guys suggest for my truck? am limited on ducketts($) looking to get a good cd receiver with speakers for now,and then wanting some kenwood 8"shallow subs.later(kfc-xw800f). contacted crutchfield and they reccommended a kenwood excelon x396/397 receiver with polk 650s speakers! sounds cool.could i get a cheaper receiver with the polks,to run the subs later? and what amp(cheapest/best/lowest amp) to run shallow 8" subs) SET-UP------75.00 to 100.00 receiver.polk 650s speakers.(100.00) kenwood kfc-xw800f subs(100.00). what amp would/should i use? (50.00-100.00) and best/cheapest sound deading mat! thanks!