MTX Audio ThunderForm CXP20T Custom-Fit Enclosed Subwoofer - Chevrolet / GMC Extra Cab Pickup 1999-0... Car Speaker "replace front speakers gmc truck" Questions

...front,darks in the rear).Using connecters attach new spkr pigtails connect spkrs and re-install into dash. Using epoxy replace clips on grilles waiting for epoxy to set,,carefully replace grilles and ...