Universal Car Amplifier Bass Knob Control Via Rca Rca Audio Interconnect LC-1Car Amplifier Universal Bass Remote control KnobAdjust the amplifier's gain level with this remote level controller.Adds a dash mounted Sub-Woofer volume control or balances a multiple amplifierWith RCA Composite Cables, this amplifier controller offers high-quality signal transmission TOP BRANDS Payment Shipping Returns Contact Paypal PayPal is our preferred method of payments its the quickest, easiest and most secure way to pay for your goods or services online. PayPal offers buyer and seller protection should there be a problem. If you do not have a PayPal account, to get started and buy your first item with us is very easy. Simply click on the Buy It Now button and follow the eCRATER checkout steps. Select PayPal as the payment method you then will be given the chance to enter your card details in to PayPals secure checkout in order to pay for your order. Once the payment has been made, you will then be given the opportunity to make your own PayPal account to make paying for your items in the future very easy. Should there be a problem with payment please do let us know.Our stock all ships from our US-based warehouses.Shipped via UPS or USPS(depending on location and package weight) Unless stated otherwise, all orders will ship within 24 hours of your payment being processed.Check our feedback to see the great reviews of FAST shipping we offer.Shipping is always FREE If you are not 100% satisfied with your purchase, you can return the product and get a full refund or exchange the product for another one, be it similar or not.You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. If you have any queries, please contact us via eCRATER. We usually respond within 24 hours on weekdays. Thank you for visiting our eCRATER store!