changed factory radio with aftermarket one now message center not working properly

Asked by Mar 29, 2012 at 06:16 PM about the 2004 Pontiac Grand Prix GT1

Question type: Maintenance & Repair

lost dont know what to do

4 Answers

595

what year grand prix is it??? I had the same problem with my 05 ended up having to do some real rocket science to get everything to work.

1 of 1 people found this helpful.
10

i also have that problem mine is a 2000 grand prix gtp and i unpluged factory cd player and just pluged in aftermarket to make sure had right plug put the factory back in and now the msg center doesnt display anything

1 of 1 people found this helpful.
595

The 2000 is not the same system as the 04 and on. With my o5 you have to use a GM computer interface to use an aftermarket Stereo. This will screw with alot of other car features like door chimes and steering wheel controls. I ended up having to hard wire some wires and bypassing others to get everything to work like it should. ( part of that was because I bought the $39 interface insted of the $200 interface but at the time no one sold the Interface for my application)

65

yeah that damn system all runs from the factory stereo, i had this same problem in my monte carlo.... good job GM

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