Bumper to Bumper Radio, the car guys on KTAR, 92.3 FM in Phoenix, AZ, broadcast every Saturday from 11:00 am to noon. On this show, Dave Riccio of Tri-City Transmission in Tempe, AZ and Matt Allen of Virginia Auto Service in Phoenix, AZ talk about what you should be on your auto repair invoice. Also on this show:

• If you have any dispute on your auto repair invoice, there is a panel through the BBB that reviews your transaction.
• What is the Automotive Advisory Committee?
• The 4 "C's" that you should find on your invoice: Customer Concern, Cause for Concern, Correction, Confirmation
• 1994 Chevrolet 1500 Pick Up: I had a new engine installed and two days later it still didn't work. The auto shop says that I sabotaged my own engine by doing additional repairs. How can I get this resolved?
• 2010 Nissan Frontier 55,000 miles: What is the general maintenance check list for my car?
• 2004 Honda Accord: It seems as though in the colder mornings, the car is taking a longer time to turn over when I try to start it up
• 2006 Chevrolet Equinox: What shop would you recommend for a good deal on a heater core?
• 2006 Scion XB: When do I change the timing belt?
• 2003 Honda Accord 80,000 miles: What is a cracked tie rod boot and is it a necessary repair for $300?
• 2012 Nissan Pathfinder: The car is vibrating considerably when it idles and when I'm at a stop
• 1976 Chevrolet G30 Van 105,000 miles: The passenger side of the exhaust doesn't have much exhaust coming out of it and it doesn't get hot at all. 

Cars talked about on this show are the 1994 Chevrolet 1500 Pick Up, 2010 Nissan Frontier, 2004 Honda Accord, 2006 Chevrolet Equinox, 2006 Scion XB, 2003 Honda Accord, 2012 Nissan Pathfinder, 1976 Chevrolet G30 Van.