I'll try to look at it this week. For $30 after rebate for the Kensington, you can't lose
Also, look at the reviews on Amazon. The only major complaint was some hiss but that may be a problem with the Aux in on the person's Civic.
After all, you paid $165 for "troubleshooting"
If I'm not mistaken, all they had to do was hook your car up to the diagnostic computer and look at a read out. Sounds like a few minutes work to me.