Bluetooth module VOLVO V50, S40, C30, C70, XC90 from JustTech on Tindie
2 Din Android Radio Car Multimedia Player For Volvo S40 C30 C70 2004-2013 Car Gps Navigation Headunit Stereo Receiver Dvd Player - Car Multimedia Player - AliExpress
AUX input VOLVO V50, S40, C30, C70, XC90 from JustTech on Tindie
VOLVO S40, V50, C30 RADIO AERIAL AMPLIFIER UNIT 30737917 | eBay
Connects2 CTKVL05 P1 (C30, S40, V50 C70) Single DIN Fascia and wiring adapters | SwedeSpeed - Volvo Performance Forum