Hi everyone. My car has the factory hook up for the subs in the back but whoever owned it before me took them out and from what I can tell from the taped wires it looks like the installed an aftermarket system. Neither one was in my X when I bought it though. I now want to put some subs back in but I am on an extremely limited budget. I don't need anything big so I believe that the OEMs will be fine but I can't see paying $150+ for them. Does anyone have any advice to help me get some bass going in my SAV?

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06 BMW X5 4.4i Sport Package