Radio X1

2008 Pontiac Grand Prix BaseSECTION Radio X1
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Radio X1 Connector End View
GM73156Courtesy of GENERAL MOTORS CORP.
Radio X1

Pin Wire Circuit Function
A1 0.35 OG 1044 Radio Class 2 Serial Data
A2-A5 - - Not Used
A6 0.35 PU 1375 Remote Radio Control Supply Voltage (UK3)
A7 0.35 D-BU 1796 Steering Wheel Controls Signal (UK3)
A8 0.8 TN 201 Left Front Speaker Output (+) (UW6)
0.5 TN 511 Left Front Low Level Audio Signal (+) (U88)
A9 0.8 GY 118 Left Front Speaker Output (-) (UW6)
0.5 D-GN 1947 Left Front Low Level Audio Signal (-) (U88)
A10 0.8 L-BU 115 Right Rear Speaker Output (-) (UW6)
0.5 BK 1946 Right Rear Low Level Audio Signal (-) (U88)
A11 0.8 D-BU 46 Right Rear Speaker Output (+) (UW6)
0.5 D-BU 546 Right Rear Low Level Audio Signal (+) (U88)
A12 1 BK/WH 351 Ground
B1 0.35 OG 2040 Battery Positive Voltage
B2 - - Not Used
B3 0.35 PU 2232 Radio On Signal
B4 0.35 GY 8 Instrument Panel Lamp Supply Voltage
B5 0.35 BK 1450 Ground
B6-B7 - - Not Used
B8 0.8 BN 199 Left Rear Speaker Output (+) (UW6)
0.5 BN/WH 599 Left Rear Low Level Audio Signal (+) (U88)
B9 0.8 YE 116 Left Rear Speaker Output (-) (UW6)
0.5 BN 1999 Left Rear Low Level Audio Signal (-) (U88)
B10 0.8 D-GN 117 Right Front Speaker Output (-) (UW6)
0.5 L-GN 1948 Right Front Low Level Audio Signal (-) (U88)
B11 0.8 L-GN 200 Right Front Speaker Output (+) (UW6)
0.5 L-GN/WH 512 Right Front Low Level Audio Signal (+) (U88)
B12 - - Not Used
Connector Part Information 
  • OEM: 12110088
  • Service: 15306210
  • Description: 24-Way F Micro-Pack 100 Series (GY)
Terminal Part Information 
  • Pins: A1, A6-A11, B3-B5, B8-B11
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
  • Pins: A12, B1
  • Terminal/Tray: 12146448/19
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • Brakes feel soft, pull hard to one side, or make grinding noises.
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  • You are missing required tools, torque specs, or safe lifting equipment.
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