pioneer just made a new one that is very shallow not to bad power handling i dont know the model number. the review was in mobile entertainment last month. i would look into those
i have a reg cab s10 SS, i just ordered a 12" adire shiva, i had a diamond macdaddy 12" i there, its mounting depth was about 5" 3/4, if i can fit a 12 behind my seat without to many lost clickes 10"s wont be hard to find that shallow. my friend has 2 10" he2's behind his seat in a single cab s10, it slams