There are a lot of solid receivers out there that give you Apple CarPlay and Android Auto, built-in Bluetooth®, and SiriusXM connectivity. Very, very few, however, boast the shallow chassis of Alpine's iLX-W650 (only 2-13/16" deep), making it a great candidate for a smooth installation in many "problem vehicles." And none are designed to fit perfectly with Alpine's KTA-450 power pack amplifier, a compact amp that packs an impressive 50 watts RMS by 4 channels. When secured together using Alpine's Power Stack installation gear, the iLX-W650 and amp are still less than 5" deep. If space is a commodity and you're thinking about building a system with more power, Alpine has the solution.