I have an Audi TT, and have the BOSE surround sound system, I am planning on adding the above sub(prefab enclouser) + amp with installation for a total of 957.33. The split up for the parts (all new) are: $299 + $429 + $100(Labour) + $50 (parts).
So, the question is how much am I being overcharged by, if at all!