I would recomend repair, wither DIY or a professional. The factory subs are very unique. They have diual voice coils but are not traditional. The OEM amp has a positive wire, a ground, and then two toher wires that carry the frequency. I have tried different wiring cmbinations on the ones I installed with single voice coils and very dissatisfied. The OEM woffers with the 4 channel amp wiring DIY to sepearte the channels out and wire the rear OEM subs through the OEM amp to the rear sub output RCA's on a head unti is the best, quickest, and most affordable DIY mod that sounds great. After I did this mod my son blew one of the woofers.

My opinions of course, but I hope this helps a little.