Daniel,
I have an amplified microphone back there, with a large speaker recessed
into the overhead directly above the driver seat. When I make contact with
what's behind me I can hear a very loud crunch, then I stop. Works
great........ 'tis Fryedaye, isn't it.
bob
PS: I have a special $$ arrangement with my M.D. to sew up the bullet holes
and knife wounds.

not the obnoxious forktrauck variety,

but some hightech hongkong import gizmo.

about $50 shipped.

I'm seriously considering this, wonder if it would help hook up the
trailer..

<http://cgi.ebay.com/ebaymotors/Audi-A4-A6-A8-S4-RS4-RS6-TT-5000-FEET-LED-backup-sensor_W0QQitemZ8029434411QQcategoryZ33724QQrdZ1QQcmdZViewItem>

Ebay item # 8029434411

dan in syracuse