Line Output Converters

You can't change your Defender MAX HD8 stereo easily. Get a line out converter to add a sub, amp, or upgrade your Defender MAX HD8 speakers.

Digital Sound Processors

Add a DSP to bring advanced sound controls and get the most from your Defender MAX HD8 stereo.

Dads & Grads Sale

Dads & Grads Sale! Huge Discounts up to 40% off Car / Marine / ATV Audio

Subwoofers and Boxes

Find the best sub for your 2018 Defender MAX HD8 and you'll add bass and fuller sound to your Can-Am.

Amplifier and Amp Accessories

Amplifiers and amp accessories for your Defender MAX HD8 like bypass harnesses, DSPs and line output converters needed to add an amp.

Audio Installation & Accessories

Install car audio in your 2018 Defender MAX HD8 and make sure to get the parts and accessories that fit.