"Jim Thompson" /Snicker wrote
in message ...
Does anyone make such an after-market hands-free device for cell
phones, for automotive use...

Sure. The Parrot brand seems to be pretty good:
http://www.parrot.com/usa/products/b...-free-car-kits

Got this one for Xmas:
http://www.amazon.com/Parrot-MKi9100.../dp/B001LF3X52
.... will be installing it this weekend, if all goes well. (In Oregon here is
becomes illegal on the 1st to not have a hands-free device for cell phones.)

---Joel