AudioControl factory integration products let you have the audio performance you want without the aggravation of replacing the stereo. Their upgrades include weatherproof Bluetooth integration adapters that add wireless connectivity. Plug them into your receiver or sound processor — they’re tough enough to use in a race car! OnlineCarStereo.com also has line output converters and other AudioControl accessories to enhance in-car sound. We’re an authorized dealer with a low-price guarantee and free lifetime tech support.