Ok, then here is what you do. Go to
www.racinghelmetsforpets.com ask for the model with the built in headphones. Probably a medium would fit considering the size of you pup. Order the audio tape called Fido's Phone Follies. This is a collection of the finest canine phone sex tapes. Your pooch will be so excited listening to these tapes he/she will never here your car running.
Make sure you put in a few extra towels for the pooch to sit on.
Cranky