Planning to get a underseat? Where can I get MBQ 8"? and how much is the installation? Any recommendation?Yeah it makes a lot of difference. The tone will be a lot better. My myvi got 2 way 4" in front, and 2 way 6.5 inch at the back door now. The sound is a lot better than stock but something is still missing. The omph of a subwoofer. Planning to get an 8" underseat sub when budget allows