They noticed 3 things:
1) Engine ground cable corroded. Ground cable requires replacement. $245
Leave the original and install a secondary. Crappy sells either insulated or braided cables. Your looking under $20. tax in tops.
Interesting option, I'll look into DIYs.
So do the above issues lead to my starting noise problem? I get a squeal/metal noise when I first start my car after its been sitting for a few days, usually when its dry or cold out. Any other starts later that day are fine. Rarely happens in summer.
Here is a video of my car starting:
https://www.youtube.com/watch?v=MFWsTpwzla0 That is a lot for a ground cable
Part is $68, labour 1 hr is $148.
Tensioner is $230, torx screw $9, belt $83.50, labour 1 hr, all plus taxes.