Speakers could be making noise because of electrical interference. I would say it would be do to the airbag problem. Something shorted out. See if fixing the light solves that problem. If not, buy new speakers.
<hr width=60% noshade size=1 align=left><img src="http://publish.hometown.aol.com/jrh382/myhomepage/elantraborbets1.jpg?mtbrand=AOL_US" border=0>
2000 Hyundai Elantra GLS (Photochop)
-PIAA 1100 series driving lights
-PIAA Plasma Headlights
-10" Pioneer sub powered by Kenwood 600 watt amp
<hr width=60% noshade size=1 align=left><img src="http://publish.hometown.aol.com/jrh382/myhomepage/elantraborbets1.jpg?mtbrand=AOL_US" border=0>
2000 Hyundai Elantra GLS (Photochop)
-PIAA 1100 series driving lights
-PIAA Plasma Headlights
-10" Pioneer sub powered by Kenwood 600 watt amp
