Filter Filters 6000 Remove All Filters Price Under $50 (2) Condition New (2) Brand Harmony Audio (2) Make Pontiac (2) Pontiac 6000 1986-1991 Factory Stereo to Aftermarket Radio Antenna Adapter Plug $5.95 Pontiac 6000 1990-1991 Factory Radio OEM Original Stereo Wire Harness Plug $7.95