For company that looking for a good source of tech is the local school system. Many of them offer auto classes and when the kids finish they cant find jobs. If a dealer want younger tech then start them off as PM tech and move them up as their talent grow.
I know of a company that did that to one guy and paid $8.00/hr and after six months the guy ask for more money and the company said NO. So the guy went to another dealer and now after 10 year in the business the guy is making $23 per hour.
So the lesson learned is if you hire young tech at low pay dont be afraid to raise their pay or you will lose them.