Nav hu

[oldsrider87]

Wanting to replace the monsoon hu in my 2005 bonneville gxp with gm factory nav unit that will work and keep all onstar and steering controls, ive heard that this can be done and need some help on parts.

[oldsrider87]

Needing P/N for nav h/u please..

[harofreak00]

TNR800 Navigation Radio, P/N: 15800000

You'll also need the GPS antenna and cable.

[oldsrider87]

is that all i will need besides the tech 2 ? Ive found a nav h/u with p/n 15800001 will this work?

[harofreak00]

No, thats the LUX version, it won't work unless you upgrade your amp. You need 15800000

[oldsrider87]

So ive found a 1580000 but its got a bose amp?

[00Beast]

The HU has a bose amp? Your car has a Monsoon amp.

[oldsrider87]

Yes the 15800000 h/u ive found comes with bose amp. So it doesnt matter then it will work with my monsoon amp?

The HU has a bose amp? Your car has a Monsoon amp.

[oldsrider87]

Also will this be plug and play after i take it to the dealership and get it programed? Will xm, cd changer,steering controls, and onstar work?

[00Beast]

I don't think it's quite plug and play. I know you have to cut out the dock & lock connector to get it to plug in.

[harofreak00]

Unless you are buddies with the someone at the dealer, there is about a 1% chance you are going to get the dealer to program it to your car.

[oldsrider87]

Ive found a dealership that will program the 15800000 h/u to my car but the guy says the nav will not work. What should i do? Is there any info that anyone has that would be helpful ? Any info on what steps this guy needs to take to get it in and working?

[harofreak00]

Yes we know it won't work without effort. Its not designed to work there, hence why its custom, and why everyone isn't doing it.

We do know that it is possible. I'd love to give you step by step direction of what to do as far as wiring changes, but I didn't do the wiring for my install, ddalder did, and he's not around anymore. My install was also much more complicated because I added a CD changer, XM radio, and upgrade from Bose to Monsoon at the same time. You'll need to locate and install the GPS antenna and antenna extention wiring. You'll need to add a VSS wiring. You'll need to locate the radio retainers. You'll need to cut out the back of the radio bay so the nav unit will have enough room. You'll have to make the custom wiring adapter with a male connection for the back of the Nav, and a female connection for the car end of the harness. You'll need the Tech2 for the VIN relearn.

[oldsrider87]

What is vss?

[RJolly87]

Vehicle Speed Sensor. It is used to steady the GPS while the vehicle is in motion, so it is able to predict where you are going. It also disables all the fun functions while the vehicle is in motion.

[harofreak00]

But you can bypass the VSS wire with a simple switch so you can still use Nav while in motion.