Thread: super mod that i have not seen anyone do yet

Originally Posted by Gearhead43

Pics dude!!! And oh, why you need another trip computer when you have one in the DIC?.. Did I miss something??

i'm after it more for the temp/compass, in it... though i suppose i could have done that with a rear view mirror... but other people have done that.


.... im thinking of another mini-mod to go with this one, too. the one downside to this mod is loosing the 12v receptacle up on the headliner. i use the one i have now to charge my motorola bluetooth handsfree device.

in looking at the overhead console, it appears that there should be enough space on the part between the DIC and the windshield to drill a hole and mound the 12v socket there... we'll see. If there is not, i intend to use the top hole of a 3 gauge pillar and mount the 12v socket there, using a custom mounting plate....

well, some potentially disapointing news on the overhead console trip computer mod.

I have a '97 GTP. if you didnt know, the 97's use a dedicated line for the fuel level signal. All later years have that integrated into the UART serial data line. The 97 transport/montana also uses a dedicated line for the fuel level signal, but it's a different wire color (every other wire for this mod between the two vehicles is the same) and routed slightly different in the wiring diagrams. I'm kinda afraid to hook the different colored wires together, for fear of frying something. Adding to that, i have a 99 montana DIC, which does have a pin for the dedicated fuel level, it's just blank. that, in itself doesnt bother me, i can just put the pin there.


sooo, i am debating what to do at this point. I might just finalize the homelink install (including the color match of the plastics) and get a new rearview with temp/compass (what i was really after anyway)


now, if i do that, if there is ANYBODY out there that would like to put the trip computer in their 98-2002, I have ALL of the info and this can be done with a little bit of $$ and it would be COMPLETELY plug and play (well run wires at least) but NO splicing of factory harness will be required.

NONE.

With regards to the 97 install:

The 97 Montana and 97 GP do have different fuel wire colors, but they are fully compatible. I just took a chance and connected them, works like a champ. So, I don't know if anyone else did this yet, but just go ahead and hook it up.