Volvo S40 Stereo Installation Kits & Parts

CARid has all the performance audio install parts you'll need to outfit your S40 with an aftermarket head unit and speakers. This sturdy little family hatchback epitomizes Volvo's commitment to safe, spacious design; with every nook and cranny meticulously refined before it lands in your driveway. Each of the engines that were available in the S40 from the factory have been recognized for their low emissions (including the two diesel options.) It's come time to replace the head unit, and possibly the speakers and you've come to us for the hard-to-find audio install products for your Volvo, including the transition wiring harness you'll need to power the new stereo.

We stock a quality line of transition harnesses, made by Metra. Their “Smart Cable Harness” is sure to make install day easier since it connects OEM wiring to your aftermarket radio. Our product page lists several popular manufacturers including Clarion, Panasonic, JVC, and more. Purchase a universal harness (see “Wiring Harness for Aftermarket Radio”) and wire it into your new deck and you don't have the worry of cutting into the stock wiring of your S40, which could potentially void your warranty, or damage the OEM features built into the head unit.