Did any of you install this with your aftermarket head unit with Bose system? Do all the speakers play correctly? Here's a link to the harness:

http://www.amazon.com/Scosche-Wiring-Ha ... automotive

Do you miss the chimes? Also is there anything else I would be missing besides the chimes if I go with this harness as opposed to the Metra GMOS-09?

Oh, and if I plan on replacing the Bose amp and trunk deck speakers with my own 4-channel amp and speakers, while adding a mono amp for subwoofers, would this harness be an issue?

As long as you don't care about the chimes, that unit will work whether you keep the Bose or put in a different 4 channel amp. But you have to know the pin layout so you can make the right connections.

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bobgto65

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)

Alright, thanks! Do you know where I could find the pin layout?

if you run a search using my name you will find it in some of my posts in the audio section

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bobgto65

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)

Bob
I can not find that wiring diagram you mentioned
How much messing around will I have to do if I use the harness he mentioned instead of the GMOS-09??
THe onstar hasnt worked since 2008 and I dont care about the chimes but I dont want to have to mess around rewiring a bunch of stuff no matter which harness I buy
Any chance you could walk me thru it or point me to a place with a walk thru??
Thanks

Tell me what aftermarket HU model number you have and I'll post the pin conncetions tomorrow.

_________________
bobgto65

2004 Bonneville GXP 62,000 miles purchased 04/13
2009 G8 GXP PBM, M6 9580 miles, no mods, sold 08/15
2009 G8 GT SBM 36,000 miles, modded 430 whp
2002 Bonneville SSEi 203,200 miles (sold 3/2014)