[s-cars] O2 Sensor

[Adam Cramer]

I think I might need a new O2 sensor for my S6.  The idle is a little
erratic (jumps between 800-1000 RPMS) when I first start the car.
After cleaning the IAT and ISV, the next likely suspect is the O2 (or
so I hear).

I read that some people use a universal Bosch 3-wire rather than the
OEM.  Does it matter which I use?  Any bad experiences with the
universal one?

I'm tempted to get the OEM one just because I'm not very handy with
electrical wires.   Found a pretty cheap one on eBay ($70).  ALthough,
I'm always skeptical of eBay stuff.  Anyone know if this is the right
one:  http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7927660794&category=33557&sspagename=WDVW

Thanks in advance,

Adam Cramer
95 S6 Avant