Do any of these models have 7 seats?
Not to my knowledge.
Definitely a 7-passenger "utility package" is offered. Mine has it and it increases your towing capacity too.
Does the 2009 Cadillac crx have the 3rd row seat?
Some SRX cars from 2004 to 2009 have a third row seat for a max capacity of 7. Some do not. After 2009 5 passengers only.
Could you install a third row seat in cause I have a 2004 SRK andi was wondering