Alright guys, I have been everywhere trying to get in touch with a guy on a closed thread on this forum. I am putting a Sundown X series 12 in my 2015 Mustang GT along with a DD audio M1D amp, Kinetik HC2400PRO, and a Skar RP75.4 for the speakers. Someone in this Forum was planning to run the same **** thing but with a Z series and I saw in another forum he switched to a 10 x series because someone told him it wouldn't fit. Anyway, ITS GOIN IN and you cannot stop me. Due to go in this week, amps are already installed. ANd if you have a Mustang I would love to see what your running and get some feedback on how it sounds. ANY help much appreciated. Pics are soon to come.