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2004 Trailblazer stereo

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lil_joker2k2 
Copper - Posts: 119
Copper
Joined: June 19, 2002
Location: United States
Posted: July 29, 2004 at 7:52 PM / IP Logged  
OK here is my scenario. Im trying to install an aftermarket stereo into a 2004 Trailblazer, its the Premier DEH-960MP I got the harness that you need. The guy at the store said that I still needed the factory stereo somewhere in the car, otherwise my windows wouldnt roll up etc.. I THINK i hooked up everything right but there is no power to the aftermarket stereo, the factory stereo does work it turns on. any suggestion???
actionjackson 
Copper - Posts: 60
Copper
Joined: December 20, 2003
Location: United States
Posted: July 29, 2004 at 8:10 PM / IP Logged  
The databus factory radio harness does not come with a 12v switched source. try to take a meter and see if your red wire on your harness has power. your factory radio will still work because its working off the datbus power source
mobile1 
Silver - Posts: 482
Silver
Joined: February 23, 2004
Location: United States
Posted: July 29, 2004 at 8:31 PM / IP Logged  
action is right on. On newer GM vehilces there is no switched power. most wiring harnesses give you an extra length of wire to run to the fuse box for this. I prefer to go to the ignition harness. In your vehicle the wire would be a orange or brown wire at the ignition harness. make sure you test it first.
lil_joker2k2 
Copper - Posts: 119
Copper
Joined: June 19, 2002
Location: United States
Posted: July 31, 2004 at 2:03 PM / IP Logged  
AHHH thanks guys, yea i took out the good old probe and found out i had no power on the red wire, got it working, thanks guys!
dudek38 
Copper - Posts: 253
Copper This member has made a donation to the12volt.com. Click here for more info.
Joined: March 28, 2004
Location: United States
Posted: July 31, 2004 at 11:15 PM / IP Logged  
whats lil joker talking about when he said he needed to keep the factory stereo hooked up becuz the windows wont work?
owner of
Motion Marine & Car Audio
the florida keys
2002sportside 
Member - Posts: 13
Member
Joined: June 09, 2004
Location: United States
Posted: August 01, 2004 at 12:05 PM / IP Logged  
^ Myth told by some stereo installers about newer GM radios.  They claim it controls a lot more than it does.. although the radio thing is new to me.  Basically they just got him to spend $60 on something he didn't need.  Sounds like CC or BB to me...
2002sportside 
Member - Posts: 13
Member
Joined: June 09, 2004
Location: United States
Posted: August 01, 2004 at 12:07 PM / IP Logged  
Ah, I should have proof read... that should say "the window thing is new to me."
mobile1 
Silver - Posts: 482
Silver
Joined: February 23, 2004
Location: United States
Posted: August 07, 2004 at 7:50 PM / IP Logged  
  the "window thing" has really nothing to do with windows. newer GM vehicles integrate a lot of things into the radio. the door chime and some other convenience features are integrated into that factory radio. If you remove this, you can't use those features any more. thats why some people choose to relocate the original radio.
2002sportside 
Member - Posts: 13
Member
Joined: June 09, 2004
Location: United States
Posted: August 07, 2004 at 8:25 PM / IP Logged  

Onstar is the only feature that you can't use that I know of.  If you know of any others please let me know... I haven't heard of anything except Onstar and warning chimes.


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