Metra Auxiliary Switches & Controllers at Sonic Electronix

We love people and we're ready to help you! See what separates us from our competition.

Free perks, no Prime^TM fees

Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.

Free install gear for stereos

Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.

Authentic & Authorized

We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.

View best sellers, deals, and more

Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!

Learn about All Car Audio

We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!

Call or email our experts

Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!

Why Shop With Us?

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Where to find vehicle info | Shop without vehicle

Where to find vehicle info

Owner’s manual
Vehicle’s insurance card
Vehicle registration
Vehicle produced after 2005: Inside driver’s side door
Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment