So my 03' came with the Bose system. Subsequently I installed a JL 500.1 and two 12" W3s under my back seat. No matter how I tune my amp, it sounds like pure shit. Either the high bass sounds good and the low bass drowns out or vice versa... I think it's due to something Bose related (amp???). The last car I had this system in, it sounded awesome. I've put up with this b/s long enough. I plan on taking the system out and putting it in my 72' when the time comes but in the meantime I've got to remedy this. JL makes something called a Clean Sweep so that the stock head unit can be used but I don't know if this is worth it. Anybody know how I can bypass this Bose cluster-fuck?