[Bene505]

Here's a cheap radar reflector on eBay, the kind like I mentioned.

ALUMINUM RADAR REFLECTOR WITH HANGER SHACKLES :eBay Motors (item 190343465974 end time Oct-25-09 16:10:52 PDT)



Just make sure you deploy it so the it "catches rain" in one of the inner corners. That makes sure it is at the proper orientation to reflect best. In other words, a radar signal will then hit 3 surfaces while bouncing back out.

Regards,
Brad