overhead console question

i know yellow is power , should it be a constant power or a switched power through the key?
also, how do you calabrate the direction? doesn't make any difference to push both buttons at the same time.

Yellow is serial data signal
Orange is +12V always on battery
Dk green +12V switched (ignition)

http://files.automotiveforums.com/gallery/watermark.php?file=/500/240769dicWtrip-med.JPG

i guess what i should have ask, is at the readout it self.yellow is power, i have it working,but did you guys have a constant power on the yellow or is it through the ingition switch.

At the display itself, yellow should be serial data. If you run that to power you're gonna fry the display.

Can an overhead console be easily installed in an 05 Blazer that didn't have one installed at the factory. Are the wires already there?

Can an overhead console be easily installed in an 05 Blazer that didn't have one installed at the factory. Are the wires already there?

Can easily be installed, but the harness is not already there.

i guess what i should have ask, is at the readout it self.yellow is power, i have it working,but did you guys have a constant power on the yellow or is it through the ingition switch.

Are you saying the diagram is wrong? What did you do for the orange wire?

i don't have orng on mine.
i have yellow=power ,
grk grn=vss,
grn.blk=temp ,
blk/wht=ground.
gray, brown =dash and dim lights / not connected
so is the yellow to a constant power or a switch power
i have it to a switch power and thought that maybe why i can't get the compass to read correctly.
not a big deal the temp works but the direction is off.

i don't have orng on mine.
i have yellow=power ,
grk grn=vss,
grn.blk=temp ,
blk/wht=ground.
gray, brown =dash and dim lights / not connected
so is the yellow to a constant power or a switch power
i have it to a switch power and thought that maybe why i can't get the compass to read correctly.
not a big deal the temp works but the direction is off.


Ok, pin 14 to constant, pin 7 to switched. Now by OFF that it's not coming on period or is it not showing the direction properly? If it's not showing the direction properly you need to calibrate it.

it's not showing the correct direction.
tried pushing both buttons ,doesn't help.

Find a very large empty parking lot. With the temp/direction displayed, press and hold both buttons until the unit displays CAL. When it does drive in tight circles 3-5 times until the unit calibrates and returns to normal.

thanks i'll give it a try
you guys have been a great help and patience in doing this project thanks again !!!!!!!

Does the compass stay on? Soes it only show one direction? What do your other functions say?

temp is on and close to correct
compass is on and changes direction , but not correct direction. example ,west may read sw or north reads nw

you guys are the cats a** thanks again

you guys are the cats a** thanks again

So the calibration worked out for you?