You have a factory system that is 6 or more speakers, and have an external amp that handles the crossovers to feed the tweeters. Re-wiring all of this without keeping the amp is a royal pain! These directions allow you to replace the head-unit while maintaining the factory amplifier and speaker wiring. ZERO re-wiring to the speakers is needed.
I found an old thread about patching in to piggyback on the tape signal lines of an 850’s head unit. I believe it was an HU-813. Instead of using a cassette adaptor (which degrades the audio signal) and instead of tapping into the CD-Changer inputs (which costs over $100), the idea was to solder a […]
To pair an aftermarket head unit with the premiere sound system found in my 2003 Volvo V40 I used the following parts: *Autoleads PC9-414 Wiring Harness Adapter, $34 (dynamicsounds.co.uk) [+/- $50 w/ shipping from UK] *Metra 70-9221 Radio Wiring Harness for Volvo 99-06, $13 (amazon) *Metra 40-VL10 Volvo Antenna Adapter, $5 (amazon) *Volvo Genuine Part […]