Theoretically...yes, you can use your stock amp to drive the sub...but it won't sound good. The stock amp have built-in cross-over, which is set rather high for the sub, even if you choose the "woofer" line out of the amp. Besides, the OEM sub is just made out of a couple 6.5". So, if you drive it with your stock amp, it will just sound as if you have added a couple of extra door speakers. IMHO, even if you get the proper amp to drive it, the OEM sub won't sound as deep and tight as a single 8" or 10". Why do you think everyone is dumping their OEM sub for the BSW or JL Audio?