I use a walkman with a splitter for the passenger's earphones. Bose markets a headset to frequent flyers that samples ambiant noise and and electronically cancels it out. On a trip to LA a while back, The guy sitting next to me let me try his. They worked very well. I don't know how they would work in the Cobra. I would be interested in hearing from someone who has tried them in his car. I think the cost in the $200- $300 range.
Steven
Hmmm, maybe a normal car stereo that has 2 headset jacks would be the ticket....low speed/ parking lot- use the speakers in the car, at speed use the Bose headsets...