Interfaces & Adaptors

Car audio interfaces and adaptors from Audison, Vibe, Wavtech, AudioControl, RetroSound and more, for installers and enthusiasts integrating aftermarket equipment with factory systems.

These are the small parts that make an aftermarket install work properly. Our interfaces and adaptors include start-stop voltage stabilisers for new head units, MOST interfaces, video input adaptors, USB retention leads and signal presence modules for DSP amplifiers. Not sure what your vehicle needs? Ask our installers. Free UK mainland delivery on all orders.

What's in the range

MOST and fibre optic interfaces: Audison bit DMI and Vibe OPTIMOST25 for OEM fibre optic systems.
Load and signal modules: Audison USS4 and ASP, AudioControl AC-LGD and Wavtech LinkLD for factory head units feeding a DSP or amplifier.
Remote turn-on and power: Wavtech ART and IRAD modules, plus a plug and play start-stop voltage stabiliser.
USB and video: VW Transporter T6 and T6.1 USB retention leads, RetroSound USB-A and USB-C extension harnesses, and a Fakra to RCA video input adaptor.
Wiring: RetroSound radio replacement harnesses.

How to choose the right interface

Check how your vehicle's factory audio works. Cars with fibre optic MOST systems need a MOST interface to get a signal for an aftermarket DSP. Some factory head units detect missing speakers, so a load device keeps them happy. If a new stereo resets when the engine restarts, a start-stop stabiliser helps. Pair these with our installation kits and DSP amplifiers.