ok well im hookin up a eclipse navi on my gf truck and the deck has a wire that goes to the speed wire on the computer and I wanted to know wat color is the speed wire on the trucks computer oh by the way its 09 silvy. thanks guys!!!!!!!!!!

 

pin 41 on the tcm. purple and white. if it is a 4 speed tranny.

 

hell yea thanks bro!!!!!!

 

um you don't HAVE to hook it up if you don't want to...i usually just cut 'em...just my .02

 

will it still show the velocity on the screen?
and wat about the reverse wire I don't need it if I don't have the back up camera right or do I still have to hook it up

 

shouldn't need the reverse wire w/o the backup camera just gotta make sure when you start-up the unit to have the backup camera set to Off

 

no, you should hook up the reverse wire, I didn't hook it up at first and I had to back out of the drive way, and when i went down the road going forwards, the arrow for my truck was backwards. - plus it's not that hard
I have an eclipse hu too, and i didn't hook up the speedwire and the navi still works great - doesn't show speed though

 

where/what is the tcm?

 

only gen iV setups have them. yours would be at the pcm. do you need the wire color and pin #?

 

yeah, that would be extremely helpful
I thought it was the purple/white wire that went into the Tcase, but i was wrong