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Discussion Starter · #1 ·
I have a 2007 Sierra 2500HD Classic with a model 15850275 stock radio. The codes show I have the following:

UB0 RADIO AM/FM STEREO SEEK/SCAN. CD AUTO TONE DATA SYSTEM CLOCK ETR

UQ7 SPR SPEAKER SYSTEM PREMIUM PERFORMANCE ENHANCED AUDIO BOSE

As far as I can see there are 6 speakers (there may be a Bass speaker under the centre console judging by the way it vibrates at higher volume settings.)

There is a CD/AUX button on the unit, but as far as I know there is no AUX input, and pushing the button only switches to CD. At the back of the unit there are 3 connections:

Antenna
24 pin in use
12 pin not in use

Is there a way to hook an auxilliary input to the 12 pin connector (Ipod, GPS etc)?

Thanks

Wooly
 
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