Amazon.com: Car Stereo Wire Harness and Antenna Adapter- Made for Some Volvo -2000-2003 S40/V40, 2001-2009 S60, 1999-2006 S80, Etc. -No Premium Factory Amp : Electronics
12-032 ISO RADIO ADAPTER CABLE FOR VOLVO C30,C70,S80 2006+;S40,V50 2004+;V70,XC70 2007+;XC90 2002+ - AliExpress
Car Stereo ISO Wiring Harness For Volvo S40 V40 S70 V70 S60 S80 Auto Radio Adapter Connector Power Cable Adaptor Plug Wire - AliExpress
Volvo V70 HU-6 and HU-8 radio replacement ISO and phono adapter cable - InCarTec
ISO Adaptor For Volvo S40 S60 S70 S80 V40 Radio Wiring Harness PC2-71-4 CT20VL02 | eBay
ISO Adaptor For Volvo V70 V80 XC70 S70 S40 S60 S80 Radio Wiring Harness PC2-71-4 | eBay