$109 for a Car-Stereo Auxiliary Jack with Installation and Antenna Adapter at Sound Decisions ($270 Value)

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What You'll Get


Car stereos bring entertainment inside of motor vehicles, unlike drive-through safaris, which keep the entertainment at a safe distance.

The Deal

  • $109 for a car-stereo auxiliary-jack package ($270 value)

  • Auxiliary jack with installation
  • Antenna adapter

The iSimple IS31 and IS335 modulator’s 3.5-millimeter jack directly connects iPods, smartphones, and satellite-radio units to an existing car stereo, streaming crystal-clear sound without interference or static.

The Fine Print


Promotional value expires 90 days after purchase. Amount paid never expires. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Appointment required. Merchant’s standard cancellation policy applies (any fees not to exceed Groupon price). Must use promotional value in 1 visit. Promo codes not valid on this offer. May be repurchased every 30 days. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Sound Decisions


Now in its fourth decade of operation, Sound Decisions specializes in upgrading rides with audio, video, navigation, and security systems from brands including Alpine, Kenwood, Rockford Fosgate, Pioneer and JL Audio. The shop's trademark pink mailbox flags down drivers to check out the showroom, where stereo faceplates, sound-punching amplifiers, and trunk-rattling speakers line the walls. During appointments, five full-time installers answer customer questions and fit vehicles with accessories, even going a step beyond the practical with cosmetic upgrades including internal ambient lighting, undercarriage LED lighting, and front-grill teeth whitening.

Sound Decisions

Auto Repair & Maintenance, AV & Security Installation
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