iPod and Auxilary Input Interface with HD Radio Option for Cadillac STS Factory Radios

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

isgm574 thumbnail

iSimple Gateway ISGM574

OUR PRICE: $109.99

View item

Get FAST answers from customers ASK a Question See questions answers

The new expandable uPAC interface from PAC Audio is the best way to directly connect your iPod, HD Radio, or Auxiliary input to the factory radio. The uPAC interface allows the user to navigate all text right from the radio's display and use the radio to browse music bu Artist, Genre or Playlist. Then, simply add the PAC uPAC-HDRT HD Radio module to enjoy CD Quality music from FM Stations.

Product Features:
  • Interface with iPod and Auxiliary inputs to connect to the factory radio
  • Dual inputs: iPod and Auxiliary, Auxiliary and Auxiliary, iPod and HD Radio, or HD Radio and Auxiliary
  • View artist and song information on the display of the radio
  • Browse iPod directly from the radio and/or steering wheel controls
  • Retains factory installed Satellite radio
  • Works with both 6-disc CD Changer radios and navigation radios
  • Compatible with vehicles that have Rear Seat Entertainment (RSE)
  • Compatible with 2007-2008 Cadillac STS
  • Note: Does not charge iPhone 3G, iTouch 2nd Generation, or Nano 4th Generation
    • The Apple iPhone 3G, iPod Nano 4th Gen, iPod Touch 2nd Gen, and any other newly released iPods can be controlled using the iPod adapter above; however, charging will not be possible unless you purchase the Scosche IFWA PassPORT charging adapter
  • 1 Year warranty

Product History:

iSimple ISGM574 thumbnail
(newest, current model)
PAC uPAC-STS thumbnail
(previous model, replaced by iSimple Gateway ISGM574)

Product Features

Type of Auxiliary Input
Some harnesses will add a audio input to a factory stereo, while others will add a video. Some will be able to do both. This is what type of input the harness adds to the factory stereo.
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Hide answersShow all answers | Sort by
No questions have been asked about this item. Be the first!

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: PAC uPAC-STS

Item Added to Cart


iPod and Auxilary Input Interface with HD Radio Option for Cadillac STS Factory Radios


Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection