Okay, after some searching I found that these straps a called Convertible Top Pads .The part number is 5170488AA. The oem ones run around $200 for a set. I found these "2004 thru 2008 Chrysler Crossfire Convertible Top Pads" for $65 at https://www.topsonline.com/model/Con...Crossfire.html . I'm sure you could make your own a lot cheaper, but if you don't want to deal with it , these seem like a reasonable alternative.