Aftermarket Radio messes up DIC?

[Tobes]

I just read that because some of the systems of the DIC work through the sound system, that putting a different radio in the truck would mess that up....Have any of you heard of something like that?  That sounds really messed up.

 

Thanks

???  ???  ???

[LarryE]

sounds fishy to me

 

we'll find out soon,  I'm gonna put my pioneer gm sized player in the trailblazer when I get a new pioneer mp3 player for my silv.

[carguru]

The OnStar system was linked to the radios used up to the '02 models.  Replacing the stock radio on these requires an aftermarket adapter to keep OnStar.  The '03 radios actually are actually tied to the body control modules (BCM).  This means that any changes (aftermarket radios, etc.) will require the module to be reprogrammed (just like the fog lamps).  This was done to aid in theft prevention of the radio.  The radios in the '03 require the VIN to be programmed into the radio at initialization.  If changed to another vehicle, the radio must be reprogrammed by Delco/Delphi to reinitialize.  I just wonder how many people are going to be screwed over on ebay when buying the '03 take-out radios. ???

[OCFreedom]

What's the question......  You can plug and play the 01-02's headunit but you will loose onstar.  No sweat, if you don't use it, I just went ahead and bypassed it.

[janzik]

Is there anything else effected by this?  I heard that it may effect the resetting of the oil change light (I was told that some reset thru the ignition/gas/break pedal combo of some sort, and some go thru a radio button combo).  Anyone else hear anything like this?  I really want to put my JVC in the truck (the kd-sh99, it does mp3-cdrs), but I don't want to sacrifice any saftey (if changing the stock HU causes some warning to disable)

[carguru]

Here is just a little more info for you guys on the Data II Series radios found in the '02-up TB/Envoy/Bravada and '03 Silverado/Sierra/Tahoe/Yukon/Suburban/H2.

 

Class 2 Data Vehicle Concerns

Metra's 70-2003t and 70-2003

 

Applications:

CHEVROLET - 2000-01 Cavalier, Impala, Monte Carlo, and Venture. 2001 Malibu

GMC – 2002 Envoy

PONTIAC – 2000-01 Sunfire and Montana. 2001 Aztec and Grand Am

OLDSMOBILE – 2000 Silhouette and 2002 Bravada

Note: The 2001 Venture/ Montana/Silhouette do not require the SP-2003 chime module.

 

Metra’s 70-2003t is a 15 foot “t-harness” that will allow the installation of an aftermarket radio while keeping the factory radio (somewhere accessible) in the vehicle to retain “vehicle customization”. This is required because the radio is used as a control panel to communicate with the vehicles computer for the customization of certain “convenience features”. All features work and remain at current settings with the factory radio removed, but can only be customized and/or reset by an authorized service center. In my belief, the door chime is the greatest loss, which is inoperative without using the 70-2003t in conjunction with Metra’s SP-2003 chime module (self enclosed speaker) mounted under the dash. This will keep the chime to its factory settings. Metra’s 70-2003 can be used instead, but the factory door chime will not work.

There is also no switched 12vlt. power supplied in the radios plug, so it will need to be sourced somewhere else such as the factory fuse panel. A 15 to 30 amp fused accessory power source is recommended. Depending on the vehicle there are several choices in the factory fuse panel, such as the sunroof or windshield wipers. Both the 70-2003 and 70-2003t include a 42” red wire with a fuse tap at one end.

Vehicle Customization Menu Options: (Most Cavaliers, Sunfires and other base models do not offer most, if any of these features. Check the vehicle owner’s manual to see available features.)

 

 

Displays current settings

Oil life monitor reset

Tire inflation monitor reset

Delayed headlamp illumination

Automatic door lock and unlock

Remote visual/audible verification of remote lock/unlock

Enable/Disable content theft

Enable/Disable trunk lock shock sensor

Short or long horn with remote lock/unlock

Key fob transmitter programming

 

For the Cavalier air bag concerns:

GM’s service document numbers 537803, 558212, and 558208 give detailed instructions

on removal of the radio. Document 537803 is the basic removal and installation referring to 558212 for the trim plate bezel replacement, and to 558208 for disabling the SIR system. Not suggesting things shouldn’t be done to procedure, but I‘ve spoken with a handful of GM service techs and not one follow these procedures when removing a radio. Do you disconnect the negative battery terminal before any install?

Other:

There is another group of vehicles using class 2 data. The Oldsmobile Aurora, Buick LeSabre and Pontiac Bonneville use a flatwire or ribbon cable type connection @ the radio. This is also referred to as GM’s “dock and lock” setup. Until a harness, in my opinion a complete rewire is easiest for aftermarket head installation. Cadillac also has several models using class2 but further info is not yet available.

[janzik]

Just an update, I installed my JVC into my 2003 TB.  I bought the Metra adapter (I think it was called the GMRC1 or something.)  Here's some pics --> http://www.mychevytruck.com/janzik