Looking to replace the stock subwoofer on my B8 Audi A4 which sits on the rear shelf. This is the non-BO system and the woofer is currently rotted out. Not looking to replace the factory amp or spend alot of money on a woofer. I am aware of the protentional rattling, so I have ordered some dynamat to lay down.

Was thinking about getting the following: https://www.bestbuy.com/site/kicker-...?skuId=5712387 but if there are woofers within the price range please recommend.