lol i was actually looking at the same one, i decided on the kenwood package because its all kenwood, and im a big fan of them lol.
As for the code just try it without the parenthesis, so pfx7c-f1uea-audcf
if that doesnt work than idk
Visual Mods: Back half 5% tint, Front half 15% tint, 5% Eyebrow tint, Rain guards, Debadged, Arrowhead overlays, Interior LEDs, Painted engine covers, Tinted tails, 6K Low Beam HID, 8K High Beam HID, Painted Grilles, Painted Door Trim
Performance Mods: CRAB intake, 18" Toyo Extensa x 4, Racingline STB, Racingline Grounding Kit
Audio Mods: Head Unit: Pioneer AVH-P5100DVD, Front Speakers: Memphis 6 1/4, Rear Speakers: Memphis 6 x 9, Subwoofers: Kenwood KFC-W3012 12" x 2, Amp: Kenwood KAC-8105D 500W