trip computer

[steve@ipecac.engr.sgi.com (Feersum Endjinn)]

Hello all,

I'm a proud new owner of a '93 100 CSQ.  It has just about all
options, including an Audi (motorola) car phone and CD player.
It doesn't have a trip computer, which strikes me as odd as from
what I've determined, this is standard on the CS and CSQ.  Am I 
wrong here?  Could it be that the instrument panel (and wiper stalk)
were replaced with a base 100 unit?  Perhaps my car really has more than
68K miles on it?  Can a trip computer be easily retro-fitted (ie. is it
pre-wired with all related sensors in place)?

Am I correct in assuming that the timing belt should be changed every 
60K or so?  My maintainence book doesn't mention this.  It also doesn't 
show if it's been done, so I'm assuming it hasn't.

I'm also missing the booklet for the phone, so there's some info 
I'm lacking, like how to work the voice activation features. Does anyone
have a '93 vintage 100, S4, or V8 with a phone?

Thanks in advance!

-steve
'59 TVR, '60 Bugeye, '67 Matra, '70 Europa, '71 FIAT 850, '74 Alfa GTV,
'84 FIAT X1/9, '90 Miata, '93 Audi 100CSQ, '95 BMW325i
(hey, everyone else lists their babies!)