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radio wire? 08 colorado


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ernk29 
Member - Posts: 33
Member spacespace
Joined: November 24, 2008
Location: Texas, United States
Posted: April 04, 2009 at 1:33 AM / IP Logged  
i have an 08 colorado with onstar, on the onstar harness there are repetition of the same wires, which one do i use? can you give me a walkthrough step by step on how to install a new headunit in detail? (the radio is an alpine cda-9830, and the truck is 08 chevy colorado
ernk29 
Member - Posts: 33
Member spacespace
Joined: November 24, 2008
Location: Texas, United States
Posted: April 04, 2009 at 1:36 AM / IP Logged  
i have the radio also hooked up and its not turning on but when i directly hooked it up to the battery to check it turned on
nstaller36695 
Copper - Posts: 106
Copper spacespace
Joined: January 20, 2006
Location: United States
Posted: April 04, 2009 at 2:11 AM / IP Logged  

u need a data interface harness to get an ignition wire behind the radio AND keep your onstar. if u dont mind losing your onstar you can run a wire to the fuse box under the hood. i highly recommend the interface even at the outrageous price. they retain the onstar and the radio not going off until a door opens plus the door chime

the best part of a job is seeing the bumper get smaller over the horizon
ernk29 
Member - Posts: 33
Member spacespace
Joined: November 24, 2008
Location: Texas, United States
Posted: April 04, 2009 at 8:02 AM / IP Logged  
i have it hooked up to a onstar harness, i color matched every thing and i dont know why it wont turn on, and i checked the fuse box under the hood, and i cant find a secondary fuse box,the harness has two dimmers, remote turn ons, power, and rear speakers, i had a kenwood hooked up the same way i have my alpine hooked up the other day but my alpine wont turn on
nstaller36695 
Copper - Posts: 106
Copper spacespace
Joined: January 20, 2006
Location: United States
Posted: April 04, 2009 at 8:23 PM / IP Logged  
check the module for output. ign constant etc..... if thats not it i had a coworker troubleshooting an 08 silverado for an hour i walked over unplugged the module for 30 sec., plugged it back up and worked like a champ. several manufacturers work different ways. some turn the key wire off for onstar and some mute. and if its not that maybe u just have the wrong interface be sure to check the listings as they are not all the same. p.s. the ones for $35 from wal-mart suck.
the best part of a job is seeing the bumper get smaller over the horizon
ernk29 
Member - Posts: 33
Member spacespace
Joined: November 24, 2008
Location: Texas, United States
Posted: April 07, 2009 at 11:04 PM / IP Logged  
i'm pretty sure its the right onstar harness its an metra one that was 125 for my truck, and i had a kenwood radio hooked up this harness a few days ago and it worked fine

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