I'm going through the same thing right now. My wife just traded in her 2001 Jetta, we have some Dunlap Graspic 195/65-15 snows on rims that are only 2 years old. I tried them on the matrix and the rims just don't work (the bolt holes don't match, but the brake clearance is fine, so 15inchers will work). I think I found some steel rims at www.discounttire.com. I have't had a chance to call yet, but I know that the matrix bolt pattern is 5x100 (the other common size is 5x114.3).
http://www.discounttiredirect.com/d...=2006&wd=15&pc=72514&rw=6&bp=5-100&vid=007410
This link should get you to the 15 inch rims that will work with the matrix (the picture shows a 4 bolt pattern but the discription is for a 5 bolt wheel). I've gotten wheels from them before for my sons sentra. In fact they are the ones show. Notice that there are two sets of holes, one for 4x100 and one set for 4x114.3. I'm assuming that the 5 bolt ones are the same way. Like I said, I haven't had a chance to call them on this yet.
http://www.discounttiredirect.com/d...=2006&wd=15&pc=72514&rw=6&bp=5-100&vid=007410
This link should get you to the 15 inch rims that will work with the matrix (the picture shows a 4 bolt pattern but the discription is for a 5 bolt wheel). I've gotten wheels from them before for my sons sentra. In fact they are the ones show. Notice that there are two sets of holes, one for 4x100 and one set for 4x114.3. I'm assuming that the 5 bolt ones are the same way. Like I said, I haven't had a chance to call them on this yet.