• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

navi install

R

rlh0153

New member
I have installed a Denso nav unit from a 2008 GXP into my 2005 GT. No Monsoon, but do have OnStar. Factory unit is the CD/AM/FM radio. Problem - the volume will not adjust to get louder. It is very low level and will not increase. Any info to aid in resolving this issue is appreciated.

SW controls work, but no door chime or key in ignition warning. I am told this unit has no amp and that Monsoon wiring cluster (premium sound) may be required.
 


That sounds about right. Pretty sure you couldn't get the nav system without getting the premium sound upgrade package first.
 
rlh0153 said:
I have installed a Denso nav unit from a 2008 GXP into my 2005 GT. No Monsoon, but do have OnStar. Factory unit is the CD/AM/FM radio. Problem - the volume will not adjust to get louder. It is very low level and will not increase. Any info to aid in resolving this issue is appreciated.

SW controls work, but no door chime or key in ignition warning. I am told this unit has no amp and that Monsoon wiring cluster (premium sound) may be required.
Click to expand...

Any update ?
 


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