Funny, I just put my Thule box back in the shed.
IMO no. you can't mount the bars at the end. I'm guessing the bars less the end caps, will make lots of noise.
174,000+ miles, 5/20/12 new ej257 short block, 8/20/11 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. Also CHECK YOUR OIL, these cars use it.