take a picture of your service parts sticker on your rear trunk lid and post it up here.

Make sure the vin on there matches the one under your windshield first though.

NV7 is the RPO code for magnasteer.

Another way to tell is to look at the power steering line going over the exhaust.

If it has a sliver heat shield, its non magnasteer.

This is assuming no ones removed that heat shielding though.

Best bet is SPI sticker and look for NV7.

Used to be a site that decoded the vin and told you which RPO's were on that vehicle (compnine.com) but long story short, they're gone now.