Anyone know the whereabouts for the speed signal wire that needs to connect to the Nav systems?

 

What Nav are you trying to install???

 

Here's info from ROSTRA:

Control Lever: 250-3421,250-3742
Adapter: IN KIT
VSS Wire: LOCATION 11 OR 12- POSITION 58 OR 68 OF 104 PIN CONNECTOR
VSS Wire Color: GRAY/BLACK
VSS Pulse: 8000
VSS Tach Wire: LOCATION 11 OR 12- POSITION 48 OR 78 OF 104 PIN CONNECTOR
Tach Signal Wire Color: TAN/YELLOW OR PINK/WHITE
Brake Switch Positive: GREEN/RED
Brake Switch Negative: GREEN

Please confirm these things before doing any modification.

 

Sorry for not replying sooner, daughter was at the Dr's.
anyhow......
THANKS!!!!!!
I'm installing the PIONEER NAV-SYS610T GPS NAVIGATION SYSTEM

 

Red04, Is there more than one place that you know of to tap into these wires other than at the column turn signal harness? I'm lookin for an easy place to tap into these, but it looks like that wont be the case.

 

I don't know about the 2004 models, but in the earlier year trucks some had speed sensitve volume option on the head unit. I recall one member using this wire that ran to the back of the head unit as the vss for hooking up a navigation unit. Do some searches and see what you find.

 

I found one source that said there was a speed signal in a grey wire with black stripe that was in the rear of the head unit. Not sure if thats so, but i would be willing to give it a chance. Know of any way to test this wire?

 

I just hocked up my Nav. today and used the grey and black wire on the stock radio plug its pin 14 on the plug. Now I dont know if it make a difference but I have the Audiophile radio

 

I have the Audiophile too and I will be hooking mine up today as well. Let me know if you should have any problems. I will post some pics tonight. I'm also installing a Trenz billit grill (upper and lower) and a daystar lift on my white SCREW Lariat. I also have a Snugtop SS on order.