Crutchfield said:*Kits, harnesses, and connectors – when available – are included free with receivers priced $129.99 and above and with all speakers. MasterSheet™ instructions – when available – are included free with all receiver and speaker purchases. This installation gear and info is available for most, but not all, vehicles. Some vehicles don’t require a mounting kit or speaker connectors. Some need factory system integration adapters to match a new stereo to factory equipment (these are not free, but are half-price with a stereo priced $129.99 or more).