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#1
04-20-2005, 08:14 AM
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2003 Envoy Nav Upgrade
I have a 2003 Envoy SLT with Bose and Onstar. No XM radio.
I just bought the following on Ebay last night. GM Factory Navigation Part # 15204335 Map disk version 2.0 part # 15105609 Antenna GM Part # 15135178 While I'm waiting for this to arrive I was wondering if I will need any other parts to complete this system. I've heard about a few people having sound problems after install. Or is a trip to the dealer for a vin reprogram all I need to do. If worse comes to worse I'm sure I could resell the parts on Ebay. 
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#2
06-05-2005, 04:30 PM
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Re: 2003 Envoy Nav Upgrade
I was wondering how your install went. I too am considering adding the NAV unit to my 04 Envoy and I am wondering if I will need a different amp. I have the Bose 6 disc changer currently.
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#3
06-06-2005, 12:55 PM
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Install went great. Didn't have to change amp on my car. It just worked. All I had to do was have dealer remove theft lock. Before I went to dealer I hooked it up using the theft lock bypass method. This let me know if my current amp was good or not.
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#4
06-12-2005, 08:48 PM
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You guys suck. My '02 cant be upgraded due to the data bus. Im jealous
__________________
2002 Envoy SLT 106,500 miles, AutoRide, 4x4, Navigation 2005 Saturn L300 V6, Chrome rims, Moonroof 44,000 miles
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#5
06-20-2005, 02:55 PM
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Re: 2003 Envoy Nav Upgrade
Quote:
However!!! it does depend on when during the year your voy was made though. U may want to check into that.
__________________
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