Ive actually been wondering the same thing mate, ive got an ED futura which has the clock instead of the trip comp. Im not sure if the wiring and the fuel sensors and stuff is still there and not being used, or if its just not there. If the wiring is there then it would be as simple as finding it and plugging in the trip computer. Otherwise it would still be possible but it'd require a bit more work.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.