Winter Tire Options?
 

I have a 2005 SRX V6 AWD. Been looking at winter tire options. Where the front and rear have different sizes, choices for a matched set of tires are a bit limiting. Are the wheels the same width? Can the rear tires be replaces with 235 65 17, same as the front? Was thinking the narrower tire would be better in snow. Or try to find something with the same height in a different size all around?
Thanks