Best Aftermarket Systems Deals Online in the UK (25 Deals Found)

Last Updated - 04/05/2026 Sort By:

Best Choice
Soundstream

New
Soundstream BX-10W D – Bass Restoration Processor with Remote Control | Epicenter Alternative for Factory & Aftermarket
Powerful Bass Enhancement – Unlock the full potential of your sound system with Soundstream’s bass enhancer, built to re

£64.16
erisin

New
Erisin 6M Power Radio Extension Cable for Mercedes Fiber Optic Digital Sound System For Aftermarket Mercedes E/G/CL/CLS/
✪【100% Brand New and High Quality】If there is DSP button in your factory radio, or your car has digital sound system lik

£33.32
Used
Pioneer AVIC-F980DAB 🟦 High-end navigation AV system (2526465)
Multi-colour RGB button illumination. DVD (Region Code 2). The cage and trim surround are universal. 6.2" WVGA Clear typ

£159.00
Soundstream

New
Soundstream BX-10X D Digital Enhancer Processor – Car Audio Bass Restoration Processor with Remote Control | Sub Booster
Digital Bass Processor - Say goodbye to outdated processors. This modern epicenter alternative gives you rich, distortio

£64.72
New
Reverse camera, DAB Box, Accessories For Junsun android car radio Head unit

£45.99
Best Value
BlissfulAbode

New
Car Speaker Output to For RCA Input Converter for Upgrading Factory Sound Systems with Aftermarket Gear
[AUDIO INTEGRATION MADE EASY] This converter allows you to convert stereo speaker outputs to outputs, facilitating seaml

£6.21
Beck/Arnley

New
BERU GSE116 Ignition & Heating System
Glow Plug Design: Ceramic glow plug

£109.00
New
Reverse camera/ DAB+ Box For Junsun Android Radio /DVR/ Fifber optical adapter
About Junsun. Junsun has earned itself a solid reputation for quality, reliability and professionalism in this field. Co

£45.99
EffiFish

New
Car Radio Mounting Fascia for KIA MORNING For PICANTO 2017 to 2020 Supporting OEM Dashboard Fit and Aftermarket Navigati
[LIGHTWEIGHT AND MATERIAL] Made from robust ABS plastic, this fascia panel promises durability while remaining lightweig

£12.46
New
IX210E-LR1 STINGER 10 INCH MULTIMEDIA SYSTEM WITH INTERGRATED INSTALLATION KIT
DA3868 |IX210E-LR1 - Stinger Horizon10.

£1,049.00
Keple

New
Dual Fakra Antenna Adapter & Diversity System Vehicle Aerial Stereo Aftermarket Radio Amplified Antenna Adaptor Compatib
ANTENNA REPLACEMENT: Replacing the OEM factory Radio with an aftermarket Receiver in Audio & VW Diversity Antenna System

£10.99
Generic

New
Car Stereo Dash Mount Kit and Wire Harness Combo to Install a Double Din Size Aftermarket Radio for 2012 2013 Kia Soul -
Radio Kit and Wire Harness.

£35.16
Used
Smart 451 Radio Navigation System
The Smart 451 Radio Navigation System is a high-quality in-car entertainment system manufactured by Bosch. With its uniq

£104.70
Optimum Pool Technologies

New
Optimum Pool Technologies® Aftermarket Flow Switch Compatible Replacement for IntelliChlor® Salt Systems
Manufactured by Optimum Pool Technologies. Does NOT include instructions. Refer to installation video for instruction.

£23.30
New
Universal Reverse Backup Parking Camera for Aftermarket Systems
No more blindspots to worry about - just smooth and confident maneuvers.

£39.99
ZMdooreasy

New
ZMdooreasy Car 6-Pin to USB/Type-C o Interface Panel Cable for Aftermarket Navigation Systems | 145cm Black ABS Wiring H
EASY INSTALLATION: Connect your navigation system quickly with this 6-pin to USB-and TYPE-C panel for seamless o input w

£6.04
Used
VW Golf TDI MK6 1.6 diesel aftermarket stereo radio CD player SAT NAV system
VW Golf SE TDI. Mazda 5 Sport MK2 2011 1.6 diesel steering rack. We're here to help make the process as smooth as possib

£79.96
Used
Pioneer AVIC-800DVD Car Stereo add on Sat-Nav unit system for screens Retro USED
Works withe the older Pioneer screens from around 2005-era.

£49.99
Used
Alpine In Car Stereo System Nissan Elgrand E52 With Surround Japanese
The Alpine In Car Stereo System for Nissan Elgrand E52 with surround sound is a high-quality audio solution designed to

£42.30
New
Philips Car Audio System Cem2000 MP3/wma & Cd Player USB & Remote Never Used
Sent packaged well 2nd class ASAP. Box has been opened - stereo never installed or used - see all pictures. Complete no

£64.99
New
Stinger 10" Integrated Multimedia System kit - Land Rover Defender - DA3868
Stinger 10" Integrated Multimedia System kit - Land Rover Defender - DA3868.

£1,146.99
Used
PIONEER DEH-1330R FACE OFF RADIO CD STEREO SYSTEM,VINTAGE OLD SCHOOL LOOK.
GREAT CONDITION FOR A 25 YEAR OLD RADIO, INCLUDES CAGE AND CABLES.

£38.14
Used
Alpine Car Radio and Audio System CD Changer
Alpine CDA-9812RB CD Player Alpine SXE-1725S Coaxial 2 way Speaker system 220W peak 6.5’ Alpine SPG-10C2 Coaxial 2 way S

£156.70
New
Accessories for Junsun android car radio Head unit (DAB/Camera/ADAS camera)
About Junsun. Junsun has earned itself a solid reputation for quality, reliability and professionalism in this field.

£45.99
New
For Android Car Stereo Accessories Rear View Camera Fiber Optics Adapter DAB+
Junsun has earned itself a solid reputation for quality, reliability and professionalism in this field.

£45.99

25 Aftermarket Systems deals are available from: Amazon, eBay stores, starting from £6.04.
The biggest discount we found is 10%% on Soundstream BX-10W D – Bass Restoration Processor with Remote Control | Epicenter Alternative for Factory & Aftermarket Sound Systems | Bass Enhancer Processor Car Audio at Amazon.
The lowest price we found is £6.04 while the highest is £1,146.99.
Prices for the best Aftermarket Systems deals average at £139.24.
Last updated on May 4, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Aftermarket Systems.