On 14 Jul 2008 10:38:17 -0400, (Scott Dorsey) wrote:

>James > wrote:
>>"> That said, I am wondering why the original poster wants an OBC. I have
>>> never found it very useful.... the temperature display and time are
>>> occasionally handy, but the timer functions aren't sufficient for rallies
>>> these days (and the passenger can't easily use the thing).
>>
>>The practical reason is that it shows average fuel consumption. It would be
>>great if it showed instantaneous consumption, but I can't have everything.
>
>I'll buy that. I warn you that I have found the derived numbers on the
>OBC to be less than accurate; I have run out of gas while the OBC indicated
>I had 20 miles of gas left in the tank. So I don't know how much I trust it.
>
>>The main reason is that it's a cool gadget that wasn't standard on my
>>model - and it's now cheap enough to try without breaking the bank.
>
>I am suspicious of cool gadgets, but the OBC should not be a difficult
>retrofit because there are only a limited number of inputs. I suggest you
>avoid connecting the horn and the ignition disabler.
>--scott

I'll second the horn and ignition cutout unless you just want to
have it all working. I installed it all and disconnected the horn.
Have never used the code feature as I installed an alarm and it does
the ignition cutout for me (as well as remote start).