I have a 2003 saburban, I'm not sure What amplifier to get, in-dash cd player, or subwoofer with an enclosure to get. I only want to spend about 300$ on this. I was looking at this subwoofer "http://m.bestbuy.com/m/e/product/detail.jsp?skuId=3662678&pid=1218424569291" but I don't know an amplifier to get with it. So if anyone can help me please do! Also will just any in dash cd player fit into my truck?