32valvefox

two totally different sets of pulses. the vss will stop pulsing when vehicle stops, the tach pulse(say coming from an injector pulse) will just slow down the pulses when the vehicle stops, making your navigation still thinking you are moving when you really aren't.

directechs shows... The PCM (Powertrain Control Module) is in the left front of the engine compartment to the left of the fan shroud. The VSS wire is in the green plug, pin 50. green/white @ instrument cluster, pin A4

velcro it on the top in middle of the dash.

i love my d3.... but navigation wise id rather have a garmin

from what ive been able to gather... on the d3 the vss wire makes the gps more exact than just with the gps antenna itself, and it is supposed to keep the gps accurate when you are in a tunnel. if you dont hook vss up then the gps will still work... just not in tunnels

this works... i've used this sequence before...

i'm glad you got it workin

set the parking brake.... that allows you to set your clock. if your unit is bypassed it should let you set your clock. but other than that i got nothin bud

make sure your gps antenna is recieving enough satellites to allow your nav to function. if it is... then check your speed pulses... assuming that you hooked up your vss. (the vss is not needed for the d3) but if the vss is pulsing and your truck is not moving that could throw the d3 out of wack. so with that i would unhook the vss and go without it. if you didnt hook up your vss only thing i can think of would be to reset your unit by pressing the reset button on the top left corner of the screen with a pen or something pointy. i have had a similar issue once before where the unit

there isnt a double din kit avail. you have to customize it

adding... so there should not be an issue with hooking up ill. wire

i dont think that the ill. wire would burn up a harness... it dims the factory radio doesnt it? and as for the gmos harness.. isnt the illumination wire turned on through data in the module?

i second that notion!!!

by chance do you have an overhead screen? for some reason i remember there being an issue with installing an overhead in newer chevys and the domelight wire drains the battery.... or something like that. like i said im going off a vague memory.

not a problem. maybe yo could make a custom bracket to go just below your bumper. just an idea???