If you’re a Prime member and have never tried Amazon’s Music Unlimited subscription service, you can currently get a $5 Amazon credit when you sign up for a free 30-day trial. Unlike past promotions which gave you additional credit towards the music subscription service, this current promotion gives you $5 of general Amazon credit that can be used towards anything Amazon sells. To get your free $5, visit this page, enter promo code MUSIC5, and sign up for the free trial. The credit will automatically appear at checkout the next time you buy something that is shipped and sold by Amazon.com. You can cancel at any time and keep the $5 credit.